بِسْمِ اللهِ الرَّحْمٰنِ الرَّحِيْمِ
It was described from Abu Sa’eed al-Khduri that the prophet (ﷺ) said: “Whoever reads Surat al-kahf on Friday, he will be illuminated with light between the two Fridays.” (Narrated by al-Haakim; classed as saheeh by al-Albaani)