What is the ruling on reciting Sūrah al-Kahf on Friday?

To recite Sūrah al-Kahf on Friday is highly desirable and has been the general practice of Muslims. The Prophet (saw) says, “Whosoever recites Sūrah al-Kahf on Friday, light evolves from beneath his feet to the heaven that will enlighten the day of judgement and his sins of the previous week are forgiven” (al-Hākim 2:368, declared Saheeh). Similarly, in various other Ahādīth the Prophet (saw) explains how reciting certain portions of the Sūrah is a safeguard from the fitnah & evil of Dajjāl. (Muslim) Scholars explain that just as the cavemen mentioned in the Sūrah were saved from the tyrant king of their time, reciting this Sūrah will safeguard a believer from the Dajjāl, as well as the evil men of all times. (al-Kawkabud-Durrī).