18.1 Narrated Al-Bara’ (رضي الله عنه)
A man was reciting Surat Al-Kahf and his horse was tied with two ropes beside him. A cloud came down and spread over that man, and it kept on coming closer and closer to him till his horse started jumping (as if afraid of something). When it was morning, the man came to the Prophet, and told him of that experience. The Prophet (صلى الله عليه وعلى آله وسلم) said, “That was As-Sakina (tranquility) which descended because of (the recitation of) the Qur’an.”
18.2 Narrated Ibn ‘Abbas (رضي الله عنه)
“The Quraish said to the Jews: ‘Give us something that we can ask this man about.’ So he said: ‘Ask him about the Ruh.’ So they asked him about the Ruh. So Allah Most High, revealed:
﴾ ويسألونك عن الروح قل الروح من أمر ربي وما أوتيتم من العلم إلا قليلا ﴿
They ask you concerning the Ruh. Say: The Ruh is one of the things, the knowledge of which is only with my Lord. And of knowledge, you have been given only a little (17:85).
They replied: ‘We have been given immense knowledge, we were given the Tawrah, and whoever has been given the Tawrah, then he has indeed been given a wealth of knowledge.’ So the following was revealed:
﴾ قل لو كان البحر مدادا لكلمات ربي لنفد البحر ﴿
Say: ‘If the sea were ink for the Words of my Lord, surely the sea would be exhausted (before the Words of my Lord would be finished.) (18:109)'”
18.3 Al-nawwas b. Sim’an al-Kilabi (رضي الله عنه) said
The Messenger of Allah (صلى الله عليه وعلى آله وسلم) mentioned the Dajjal (Antichrist) saying: If he comes forth while I am among you I shall be the one who will dispute with him on your behalf, but if he comes forth when I am not among you, a man must dispute on his own behalf, and Allah will take my place in looking after every Muslim. Those of you who live up to his time should recite over him the opening verses of Surat al-Kahf, for they are your protection from his trial. We asked: How long will he remain on the earth ? He replied : Forty days, one like a year, one like a month, one like a week, and rest of his days like yours. We asked : Messenger of Allah, will one day’s prayer suffice us in this day which will be like a year ? He replied : No, you must make an estimate of its extent. Then Jesus son of Marry will descend at the white minaret to the east of Damascus. He will then catch him up at the date of Ludd and kill him.
18.4 Abu al-Darda’ (رضي الله عنه) reported
The prophet (ﷺ) as saying : If anyone memorizes ten verses from the beginning of surat al-Kahf, he will be protected from the trial of Dajjal (Antichrist).Abu Dawud said: In this way Hashim al-dastawa’I transmitted it from Qatadah, but he said : “If anyone memorizes the closing verses of surat al-Kahf.” Shu’bah narrated from Qatadah the words “from the end of al-Kahf.
18.5 Abu Darda’ (رضي الله عنه) reported
Allah’s Apostle (ﷺ) as saying:If anyone learns by heart the first ten verses of the Surah al-Kahf, he will be protected from the Dajjal.
18.6 Narrated Abu Ad-Darda (رضي الله عنه)
That the Prophet (ﷺ) said: “Whoever recites three Ayat from the beginning of Al-Kahf he is protected from the turmoil of the Dajjal.”
18.7 Narrated `Abdullah bin Mas`ud (رضي الله عنه)
Surat Bani-lsrael, Al-Kahf (The Cave), Maryam, Taha, Al-Anbiya’ (The prophets) are amongst my first earnings and my old property, and (in fact) they are my old property.
18.8 Abu Huraira (رضي الله عنه) reported
Allah’s Messenger (ﷺ) as saying: A bulky person would be brought on the Day of judgment and he would not carry the weight to the eye of Allah equal even to that of a gnat. Nor shall We set up a balance for them on the Day of Resurrection” (xviii. 105).
18.9 ‘Ali (رضي الله عنه) reported
that the Messenger of Allah, may Allah bless him and grant him peace, knocked at the door of ‘Ali and Fatima, the daughter of the Prophet, may Allah bless him and grant him peace, and said, “Don’t you pray?” ‘Ali said, “I said, ‘Messenger of Allah, our spirits are with Allah. When He wishes to wake us up, we will make up.’ The Prophet, may Allah bless him and grant him peace, left without saying anything to me. Then I heard him strike him thigh after his back was turned. He said, ‘More than anything else, man is argumentative.’ (18:54)”
18.10 Narrated Abu Rafi’ (رضي الله عنه)
From the Prophet (ﷺ), regarding the ‘barrier (18:93).’ “They excavated each day, until when they are just about to penetrate it, their leader says: ‘Go back so that you can penetrate it tomorrow!'” He said: “But Allah makes it return just as it was, until their appointed time, when Allah ordains to send them upon the people, and their leader says: ‘Go back so you can penetrate it tomorrow, if Allah wills.’ So he makes this exception.” He said: “So they return, and find it just as it was when they left it. Then they penetrate it, and [they (Ya’juj & Ma’juj)] are released upon the people drinking up the water, and the people flee from them. They shoot their arrows into the heavens so they returned dyed with blood, and they say – crudely and arrogantly – ‘We vanquished those in the earth, let us dominate the inhabitants of the heavens.’ Then Allah sends Naghaf upon them, attaching to the nape of their necks, destroying them.” He said: “By the One in Whose Hand is the soul of Muhammad! The beasts of the earth will become very fat and bloated with milk from their flesh.”
18.11 An-Nawwas bin Sam`an (رضي الله عنه) reported
One morning the Messenger of Allah (ﷺ) made a mention of Dajjal, and he described him to be insignificant and at the same time described him so significant that we thought he was on the date-palm trees (i.e., nearby). When we went to him (the Prophet (ﷺ)) in the evening, he perceived the sign of fear on our faces. He said, “What is the matter with you?” We said: “O Messenger of Allah, you talked about Dajjal this morning raising your voice and lowering it until we thought he was hiding in the palm-trees grove: He said: “Something other than Dajjal make worry about you. If he appears while I am with you, I will defend you against him. But if he appears after I die, then everyone of you is his own defender. Allah is the One Who remains after me to guide every Muslim. Dajjal will be a young man with very curly hair with one eye protruding (with which he cannot see). I compare (his appearance) to that of Al-`Uzza bin Qatan. He who amongst you survives to see him, should recite over him the opening Ayat of Surat Al-Kahf (i.e., Surat 18: Verses 1-8). He will appear on the way between Syria and Iraq and will spread mischief right and left. O slaves of Allah! Remain adhered to the truth.” We asked: “O Messenger of Allah! How long will he stay on the earth?” He said, “For forty days. One day will be like a year, one day like a month, one day like a week and the rest of the days will be like your days.” We said: “O Messenger of Allah! Will one day’s Salat (prayer) suffice for the Salat of that day which will be equal to one year?” Thereupon he said, “No, but you must make an estimate of time and then offer Salat.” We said: “O Messenger of Allah! How quickly will he walk upon the earth?” Thereupon he said, “Like cloud driven by the wind (i.e., very quickly). He will come to the people and call them to his obedience and they will affirm their faith in him and respond to him. He will then give command to the sky and it will send its rain upon the earth and he will then send his command to the earth and it will grow vegetation. Then in the evening their pasturing animals will come to them with their humps very high and their udders full of milk and their flanks stretched. He will then come to another people and invite them, but they will reject him and he will leave them, in barren lands and without any goods and chattels! He would then walk through the waste land and say to it: `Bring forth your treasures’, and the treasures will come out and follow him like swarms of bees. He will then call a person brimming with youth and strike him with the sword and cut him into two pieces and make these pieces lie at a distance, which is generally between the archer and his target. He will then call that young man and he will come forward, laughing, with his face gleaming out of joy; and it will be at this very time that Allah will send `Isa (Jesus), son of Maryam (Mary) who will descend at the white minaret in the eastern side of Damascus, wearing two garments lightly dyed and placing his hands on the wings of two angels. When he will lower his head, there would fall drops of water from his head, and when he will raise it up, drops like pearls would scatter from it. Every disbeliever who will find his (i.e., `Isa’s) smell will die and his smell will reach as far as he will be able to see. He will then search for Dajjal until he will catch hold of him at the gate of Ludd (village near Jerusalem), and will kill him. Then the people, whom Allah will have protected, will come to `Isa son of Maryam, and he will wipe their faces and will inform them of their ranks in Jannah, and it will be under such conditions that Allah will reveal to `Isa these words: `I have brought forth from amongst my slaves such people against whom none will be able to fight, so take these people safely to the mountain.’ And then Allah will send Ya’juj and Ma’juj (Gog and Magog people) and they will sworn down from every slope. The first of them will pass the Lake Tabariyah (near the Dead Sea in Palestine) and drink all its water. And when the last of them will pass, he will say: `There was once water there.’ Prophet `Isa (ﷺ) and his companions will then be so much hard-pressed that the head of an ox will be dearer to them than one hundred dinar, and `Isa along with his companions, will make supplication to Allah, Who will send insects which will attack their (Ya’juj and Ma’juj people) neck until they all will perish like a single person. Prophet, `¦sa and his companions will then come down and they will not find in the earth as much space as a single span which would not be filled with their corpses and their stench. Prophet `Isa and his companions will then again beseech Allah, Who will send birds whose necks will be like those of Bactrian camels, and they will carry them and throw them where Allah will desire. Then Allah will send down rain which will spare no house in the city or in the countryside. It would wash away the earth until it appears like a mirror. Then the earth will be told to bring forth its fruit and restore its blessings; and as a result of this, there will grow such a big pomegranate that a group of people will eat from it and seek shelter under its skin. Milk will be so blessed that the milk of one she-camel will suffice for a large company and the cow will give so much milk, that it will suffice for a whole tribe. The sheep will give so much milk that the whole family will be able to drink out of that, and at that time Allah will send a pleasant wind which will soothe people even under their armpits, and will take the life of every Muslim and true believer, and only the wicked will survive. They will commit adultery in public like asses and the Resurrection Day will be held.”
18.12 Narrated Ibn Juraij (رضي الله عنه)
Ya`la bin Muslim and `Amr bin Dinar and some others narrated the narration of Sa`id bin Jubair. Narrated Sa`id: While we were at the house of Ibn `Abbas, Ibn `Abbas said, “Ask me (any question)” I said, “O Abu `Abbas! May Allah let me be sacrificed for you ! There is a man at Kufa who is a storyteller called Nauf; who claims that he (Al-Khadir’s companion) is not Moses of Bani Israel.” As for `Amr, he said to me, “Ibn `Abbas said, “(Nauf) the enemy of Allah told a lie.” But Ya`la said to me, “Ibn `Abbas said, Ubai bin Ka`b said, Allah’s Messenger (ﷺ) said, ‘Once Moses, Allah’s Messenger (ﷺ), preached to the people till their eyes shed tears and their hearts became tender, whereupon he finished his sermon. Then a man came to Moses and asked, ‘O Allah’s Messenger (ﷺ)! Is there anyone on the earth who is more learned than you?’ Moses replied, ‘No.’ So Allah admonished him (Moses), for he did not ascribe all knowledge to Allah. It was said, (on behalf of Allah), ‘Yes, (there is a slave of ours who knows more than you ).’ Moses said, ‘O my Lord! Where is he?’ Allah said, ‘At the junction of the two seas.’ Moses said, ‘O my Lord ! Tell I me of a sign whereby I will recognize the place.’ ” `Amr said to me, Allah said, “That place will be where the fish will leave you.” Ya`la said to me, “Allah said (to Moses), ‘Take a dead fish (and your goal will be) the place where it will become alive.’ ” So Moses took a fish and put it in a basket and said to his boy-servant “I don’t want to trouble you, except that you should inform me as soon as this fish leaves you.” He said (to Moses).” You have not demanded too much.” And that is as mentioned by Allah: ‘And (remember) when Moses said to his attendant …. ‘ (18.60) Yusha` bin Noon. (Sa`id did not state that). The Prophet (ﷺ) said, “While the attendant was in the shade of the rock at a wet place, the fish slipped out (alive) while Moses was sleeping. His attend an said (to himself), “I will not wake him, but when he woke up, he forgot to tell him The fish slipped out and entered the sea. Allah stopped the flow of the sea. where the fish was, so that its trace looked as if it was made on a rock. `Amr forming a hole with his two thumbs an index fingers, said to me, “Like this, as in its trace was made on a rock.” Moses said “We have suffered much fatigue on this journey of ours.” (This was not narrated by Sa`id). Then they returned back and found Al-Khadir. `Uthman bin Abi Sulaiman said to me, (they found him) on a green carpet in the middle of the sea. Al-Khadir was covered with his garment with one end under his feet and the other end under his head. When Moses greeted, he uncovered his face and said astonishingly, ‘Is there such a greeting in my land? Who are you?’ Moses said, ‘I am Moses.’ Al- Khadir said, ‘Are you the Moses of Bani Israel?’ Moses said, ‘Yes.’ Al-Khadir said, “What do you want?’ Moses said, ‘ I came to you so that you may teach me of the truth which you were taught.’ Al- Khadir said, ‘Is it not sufficient for you that the Torah is in your hands and the Divine Inspiration comes to you, O Moses? Verily, I have a knowledge that you ought not learn, and you have a knowledge which I ought not learn.’ At that time a bird took with its beak (some water) from the sea: Al-Khadir then said, ‘By Allah, my knowledge and your knowledge besides Allah’s Knowledge is like what this bird has taken with its beak from the sea.’ Until, when they went on board the boat (18.71). They found a small boat which used to carry the people from this sea-side to the other sea-side. The crew recognized Al-Khadir and said, ‘The pious slave of Allah.’ (We said to Sa`id “Was that Khadir?” He said, “Yes.”) The boat men said, ‘We will not get him on board with fare.’ Al-Khadir scuttled the boat and then plugged the hole with a piece of wood. Moses said, ‘Have you scuttled it in order to drown these people surely, you have done a dreadful thing. (18.71) (Mujahid said. “Moses said so protestingly.”) Al-Khadir said, didn’t I say that you can have no patience with me?’ (18.72) The first inquiry of Moses was done because of forgetfulness, the second caused him to be bound with a stipulation, and the third was done intentionally. Moses said, ‘Call me not to account for what I forgot and be not hard upon me for my affair (with you).’ (18.73) (Then) they found a boy and Al-Khadir killed him. Ya`la- said: Sa`id said ‘They found boys playing and Al-Khadir got hold of a handsome infidel boy laid him down and then slew him with knife. Moses said, ‘Have you killed a innocent soul who has killed nobody’ (18.74) Then they proceeded and found a wall which was on the point of falling down, and Al-Khadir set it up straight. Sa`id moved his hand thus and said ‘Al-Khadir raised his hand and the wall became straight. Ya`la said, ‘I think Sa`id said, ‘Al-Khadir touched the wall with his hand and it became straight (Moses said to Al-Khadir), ‘If you had wished, you could have taken wages for it.’ Sa`id said, ‘Wages that we might had eaten.’ And there was a king in furor (ahead) of them” (18.79) And there was in front of them. Ibn `Abbas recited: ‘In front of them (was) a king.’ It is said on the authority of somebody other than Sa`id that the king was Hudad bin Budad. They say that the boy was called Haisur. ‘A king who seized every ship by force. (18.79) So I wished that if that boat passed by him, he would leave it because of its defect and when they have passed they would repair it and get benefit from it. Some people said that they closed that hole with a bottle, and some said with tar. ‘His parents were believers, and he (the boy) was a non-believer and we (Khadir) feared lest he would oppress them by obstinate rebellion and disbelief.’ (18.80) (i.e. that their love for him would urge them to follow him in his religion, ‘so we (Khadir) desired that their Lord should change him for them for one better in righteousness and near to mercy’ (18:81). This was in reply to Moses’ saying: Have you killed an innocent soul.’? (18.74). ‘Near to mercy” means they will be more merciful to him than they were to the former whom Khadir had killed. Other than Sa`id, said that they were compensated with a girl. Dawud bin Abi `Asim said on the authority of more than one that this next child was a girl.
18.13 It was narrated from Khabbab (رضي الله عنه)
Concerning the Verse: “And turn not away those who invoke their Lord, morning and afternoon…” up to His saying: “…and thus become of the unjust.” [6:52] He said: “Aqra’ bin Habis At-Tamimi and ‘Uyainah bin Hisn Al-Fazri came and found the Messenger of Allah (ﷺ) with Suhaib, Bilal, ‘Ammar and Khabbab, sitting with some of the believers who were weak (i.e., socially). When they saw them around the Prophet (ﷺ) they looked down on them. They took him aside and said: ‘We want you to sit with us along, so that the ‘Arabs will recognize our superiority. If the delegations of the Arabs come to you we will feel ashamed if the Arabs see us with these slaves. So, when we come to you, make them get up from your presence, then when we have finished, sit with them if you wish.’ He said: ‘Yes.’ They said: ‘Write a document for us (binding you to that).’ So he called for a piece of paper and he called ‘Ali to write, and we were sitting in a corner. Then Jibra’il (as), came down and said: “And turn not away those who invoke their Lord, morning and afternoon seeking His Face. You are accountable for them in nothing, and they are accountable for you in nothing, that you may turn them away, and thus become of the unjust.” [6:52] Then he mentioned Aqra’ bin Habis and ‘Uyaynah bin Hisn, then he said: “Thus We have tried some of them with others, that they might say: ‘Is it these (poor believers) whom Allah has favored from amongst us?’ Does not Allah know best those who are grateful.” [6:53] Then he said: “When those who believe in Our Ayat come to you, say: Salamun ‘Alaykum (peace be on you); your Lord has written (prescribed) mercy for Himself”.” [6:54] He said: “Then we got so close to him that our knees were touching his, and the Messenger of Allah (ﷺ) was sitting with us. When he wanted to get up, he stood up and left us. Then Allah revealed: “And keep yourself patiently with those who call on their Lord morning and afternoon, seeking His Face; and let not your eyes overlook them,” – and do not sit with the nobles – “desiring the pomp and glitter of the life of the world; and obey not him whose heart We have made heedless of Our remembrance,” – meaning ‘Uyainah and Aqra’ – “and who follows his own lusts, and those affair (deeds) has been lost” [18:28] He said: ‘May they be doomed.’ He said: ‘May ‘Uyainah and Aqra’ be doomed.’ Then he made the parable for them of two men and the parable of this world. Khabbab said: “We used to sit with the Prophet (ﷺ) and if the time came for him to leave, we would get up and leave him, then he would leave.”
18.14 Narrated Sa’eed bin Jubair (رضي الله عنه)
“I said to Ibn ‘Abbas: ‘Nawf Al-Bikali claims that Musa, of Banu Isra’il is not the companion of Al-Khidr. He said: ‘The enemy of Allah has lied. I heard Ubayy bin Ka’b saying: “I heard the Messenger of Allah (ﷺ) say ‘Musa stood to deliver a Khutbah to the children of Isra’il. He was asked: “Who is the most knowledgeable among the people?” He said: “I am the most knowledgeable.” So Allah admonished him, since he did not refer the knowledge back to Him. Allah revealed to him: “A slave, among My slaves at the junction of the two seas, is more knowledgeable than you.” So Musa said: “O Lord! How can I meet him?” He said to him: “Carry a fish in a basket, wherever you lose the fish, then he is there.” So he set off, and his boy set off with him – and he was Yusha’ bin Nun. Musa put a fish in a basket, he and the boy set off walking, until when they reached a rock, Musa and his boy fell asleep. The fish was flopping around in the basket, falling into the sea.’ He said: ‘Allah held back the flow of water until it was like a tunnel, and the fish could glide. Musa and his boy were amazed. They set off the remainder of the day and the night, and Musa’s companion forgot to inform him (of the escape of the fish). When Musa arose in the morning, he said to his boy: Bring us our morning meal; truly we have suffered much fatigue in this, our journey (18:62).’ He said: ‘He had not gotten tired until he passed the place which Allah had ordered him to go. He said: Do you remember when we betook ourselves to the rock? I indeed forgot the fish, none but Shaitan made me forget to remember it. It took its course into the sea in a strange way (18:63). Musa said: That is what we have been seeking. So they went back, retracing their tracks (18:64). He said: ‘So they began retracing their tracks.'” Sufyan (one of the narrators) said: “People claim that there is a spring of life at that rock, no dying person has its water poured over him, but he becomes alive, and the fish came in contact with some of it, so when the water dropped on it he became alive.” “He [the Prophet (ﷺ)] said: ‘They retraced their tracks until they arrived at the rock to see a man covered in a garment. Musa greeted him, and he replied: Is there such a greeting in your land? He said: I am Musa. He said: Musa of the children of Isra’il? He said: Yes. He said: O Musa! Indeed you have some knowledge from Allah, which Allah taught you, which I have not been taught, and I have some knowledge from Allah, which Allah taught me, which you have not been taught.’ So Musa said: May I follow you so that you may teach me something of the knowledge which you have been taught? (18:66) He said: Verily, you will not be able to have patience with me! And how can you have patience about a thing which you know not? He said: If Allah wills, you will find me patient, and I will not disobey you at all (18:67-69). Al-Khadir said to him: Then if you follow me, ask me not about anything until I myself mention it to you (18:70). Musa said: Yes. So Musa and Al-Khadir set off walking along the shore of the sea. A boat was passing by them, and they spoke to them (the crew) asking them to let them get on board. They recognized Al-Khadir so they let the two of them ride without charge. Al-Khadir took one of the planks (in the boat) and removed it, so Musa said to him: These people gave us a ride free of charge, yet you sabotaged their boat so that its people will drown. Indeed you have done a dreadful thing (18:71). He said: Did I not tell you that you would not be able to have patience with me? (18:72). He said call me not to account for what I forgot, and be not hard upon me for my affair (18:73). Then they exited the boat, and while they were walking upon the shore, they saw a boy playing with two other boys. So Al-Khadir took him by his head, pulling it off with his hands, and he killed him. So Musa said to him: Have you killed an innocent person who killed no one! Verily you have done a horrendous thing (18:74). He said: Did I not tell you that you would not be able to have patience with me? (18:75) – he (the narrator) said: – “This was more severe than the first one” – He said: If I ask you about anything after this, you have received an excuse from me. So they both proceeded until they came to the inhabitants of a town. They asked them for food but they refused to entertain them. There they found a wall on the verge of falling down (18:76 & 77). He (the narrator) said: – meaning leaning over – ‘So Al-Khadir took his hand like this, so he set it up straight (18:77) so Musa said to him: We arrived at these people, they did not treat us as guests nor feed us. If you wished, surely you could have taken wages for it! He said: “This is the parting between you and I. I will tell you the interpretation of (those) things over which you were not able to be patient (18:77 & 78).'” The Messenger of Allah (ﷺ) said: ‘May Allah have mercy upon Musa! We wish that he would have had patience, so that we could have more knowledge about that two of them.’ He said: ‘So the Messenger of Allah (ﷺ) said: ‘The first time Musa had forgotten.’ He said: ‘And a sparrow came, until it perched on the edge of a boat, and pecked at the sea. So Al-Khadir said to him: My knowledge and your knowledge do not diminish anything from the knowledge of Allah, but like what this sparrow diminishes of the sea.’ Sa’eed bin Jubair said: “and he would” – meaning Ibn ‘Abbas – “recite: ‘And there was before them a king who would take every useful boat by force (18:79).’ And he would recite: ‘As for the boy, he was a disbeliever (18:80).'”
18.15 The Prophet (صلى الله عليه وعلى آله وسلم) is noted to have said
“Whoever recites ‘al-Kahf’ (in the same manner) as it was revealed, he will have a light on the Day of Resurrection that will reach from wherever he is all the way to Makkah. And whoever recites the last ten verses of it, and the Dajjal emerges right after, then he will not be harmed by him. And nobody makes ablution, then says: ‘Glory and praise be to You, O Allah. I bear witness that there is none worthy of worship but You. I seek Your forgiveness and turn to You in repentance’ [Subhanak Allahumma wa bi Hamdik; ashhadu an la ilaha illa Ant. Astaghfiruk wa atubu ilayk] except that it is written on a tablet and permanently transcribed on that tablet, and that tablet will not be broken or damaged until the Day of Resurrection.”
(As-Silsilah as-Sahihah 2651)
18.16 The Prophet (صلى الله عليه وعلى آله وسلم) is noted to have said
“Whoever recited Surah al-Kahf on the night of Friday; he will be illuminated with a light between him and the Ancient House (Makkah)”
“Whoever recited Surah al-Kahf, on the day of Friday, he will be illuminated with a light between the two Fridays (i.e the friday on which the recitation was made and the next friday).”
(Al Targheeb wa Tarheeb 736)
18.17 The Prophet (صلى الله عليه وعلى آله وسلم) is noted to have said
“Whoever recited Surah al Kahf on a Friday, Allah will kindle for him abundant light to brightly illuminate the period between the two Fridays”
(Hakim 2/367, Mishkat al-Masabih 2175, Sahih Al Jami 2/1104)
18.18 A hadith from A’isha (رضي الله عنه) reports:
“Should I not inform you of a Surah whose greatness fills what is between the heavens and the earth? And for whoever recites it , he has a reward like that (from the sky to earth) and whoever recites it, he is forgiven for what is between two Fridays and another three days and whoever reads the last five ayat of it when he goes to sleep, Allah will send him that night what he wants. They (Sahabas) said ” Of course (tell us). He (صلى الله عليه وعلى آله وسلم) said ‘Surah al-Kahf’.”
(Jami’ Al Sagheer 2160)
18.19 Ibn Mardwiyah (رضي الله عنه) narrated
From Ibn Omar (رضي الله عنه) who said the Messenger of Allah (صلى الله عليه وعلى آله وسلم) said, “Whoever reads Suratul Kahf on yaumul Jumuah, for him light would shine from beneath his foot to ‘Aden in the heavens, shining for him on the Last Day and he will be forgiven for what occurs between the 2 Fridays (minor sins).”
In another version:
“Whoever reads Surah al Kahf on yaumul Jummah, he is immune for 8 days from all fitnah that will happen. When the Dajjal comes out, he will be immune to him.”