“Virtues of Surah Kahf” by Shaykh Abu Yusuf Riyadh Ul Haq.
The hadith related by Hakim and Bayhaqi, from Abu Sa`id (Allah be pleased with him), “Whoever recites Surat al-Kahf on Friday, light shall shine forth for him between the two Fridays”. [Ibn Hajar, Talkhis al-Habir]
Hazrat Al Baraa said that when a man was reciting Surah Kahf with a horse tied with two ropes at one side. Suddenly a cloud overshadowed him, and as it began to come nearer and nearer, his horse began to take fright. He went and mentioned it to the Holy Prophet sallallahu alaihe wasallam in the morning and he said, “That was tranquillity which came down by reason of the Qur’aan.”
Hazrat Abu Darda radiyallahu anhu reported Allah’s Messenger sallallahu alaihe wasallam saying, “If anyone memorises ten verses from the beginning of Surah Kahf, he will be protected from the Dajjal (Anti-Christ).” (Muslim)
Hazrat Abu Darda radiyallahu anhu reported Allah’s Messenger sallallahu alaihe wasallam saying, “Anyone who reads the first three verses of Surah Kahf, he will be protected from the trial of the Dajjal (Anti-Christ).” (Tirmizi)
