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.

If anyone learns by heart the first ten verses of the Surah al-Kahf, he will be protected from the Dajjal.

That was tranquillity which came down at the recitation of the Qur'an.

Abu Dāwūd mentioned that it was reported with a variation through Qatādah, “…whoever memorizes the concluding verses of Sūrat al-Kahf,” and from Shu’bah via Qatādah, “from the end of Al-Kahf…” Reference: Sunan ad-Darimi 4323

The Messenger of Allah (PBUH) said: "Whoever commits to memory the first ten Ayat of the Surat Al-Kahf, will be protected from (the trial of) Ad-Dajjal (Antichrist)."

[Muslim].

In another narration, the Messenger of Allah (PBUH) said: "(Whoever commits to memory) the last ten Ayat of Surat Al-Kahf, he will be protected from (the trial of) Ad-Dajjal (Antichrist)."

Abūd Dardā’ reported God’s messenger as saying, “If anyone learns by heart ten verses at the beginning of sūra al-Kahf (Qur’ān, 18) he will be pro­tected from the dajjal.” Muslim transmitted it.

Abū Sa'id reported the Prophet as saying, “If anyone recites sūra al-Kahf (Qur’ān, 18) on Friday, light will shine brightly for him till the next Friday.” Baihaqī transmitted it in [Kitāb] al-Da‘awāt al-kabir.

Al-Barā said that when a man was reciting sūra al-Kahf (Qur’ān,18) with a horse tied with two ropes at his side a cloud overshadowed him, and as it began to come nearer and nearer his horse began to take fright. He went and mentioned that to the Prophet in the morning and he said, “That was the Shechina* which came down by reason of the Qur’ān.” *The word in Arabic is as-sakīna which may be translated calmness; but here it has the article which indicates something more precise. It may therefore here refer to the Jewish idea of the Shechina which indicates a divine visitation, (Bukhārī and Muslim.)

A man was reciting Surat Al-Kahf, and a horse was tied with two ropes beside him. As he was reciting, a cloud overshadowed him, and as it began to come nearer and nearer, the horse began to trample voilently. The man came to the Messenger of Allah (PBUH) in the morning and mentioned the incident to him. He (PBUH) said, "That was tranquillity which descended as a result of the recitation of the Qur'an."

[Al-Bukhari and Muslim].

It was reported that the Messenger of Allah ﷺ said, “Whoever reads Sūrat al-Kahf on the night of Jumu’ah, a light will shine for him which extends from him to the Ancient House (i.e., the Kaʿbah).” Reference: Sunan al-Darimi 3312; Sunan Al-Bayhaqi 5856; Sahīh al-Targhīb wa at-Tarhīb 736. Note: Jumu’ah is not equivalent to Friday, rather it begins at Maghrib/sunset of Thursday and ends as the maghrib/sunset time comes in on Friday.

-- Whoever memorizes ten 'Ayat (Verses) from the beginning of Surat Al-Kahf, will be protected from the False Messiah 1 if he recites in every prayer after the final Tashahhud before ending the prayer, seeking the protection of Allah from the trials of the False Messiah. Reference: 1 Muslim 1/555, another version mentions the last ten 'Ayat, Muslim 1/556. 2 See invocations no. 55 and 56 of this book.

“Whoever memorizes the first ten verses from Sūrat al-Kahf (The Cave) will be protected from the Dajjāl.” Reference: Sahih Muslim 809

It was reported that the Messenger of Allah ﷺ said, “Whoever reads Sūrat al-Kahf on the day of Jumu’ah, a light will shine for him between the two Fridays.” Reference: Mustadrak al-Hakim; Sahih at-Targhib wa at-Tarhib 736

hearing Al-Bara say: "There was a man reciting [Surat] Al-Kahf when he saw his riding animal stamping his feet, so he looked and there was something like a shadow or cloud, so he went to the Messenger of Allah (SAW) and mentioned that to him. The Prophet (SAW) said: "That was the tranquility which descends with the Qur'an, or descends because of the Qur'an."

A man was reciting Sūrat 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 (ﷺ) said, "That was tranquility which descended because of (the recitation of) the Qur'an." Reference: Sahih al-Bukhari 5011

“Whoever recites Sūrat al-Kahf as it was revealed will have a light on the Day of Resurrection, from his position to Makkah, and whoever recites the final ten verses of it (Al-Kahf) and then encounters Al-Dajjal, will not be harmed (by him). And whoever makes wudu’ and then says: “SubhānakAllahumma wa behamdika lā ilāha illā anta, astaghfiruka wa atoobu elayk” (Glory and praise be to You, O Allah, there is no deity worthy of worship except for You, I seek Your forgiveness and I repent to You),1 it will be written a scroll (of deeds), and then placed in a seal which will not be broken until the Day of Resurrection.” Reference: As-Silsilah as-Sahihah 2651.

At the end of Surah al-Kahf, but Hammam said: At the beginning of Surah al-Kahf.

The Messenger of Allah (saws) 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.