Abu Darda narrated that
the Prophet (PBUH) said: "If anyone learns by heart the first ten verses
of Surah al-Kahf, he will be protected from the Dajjal." In another
version, he said: "...at the end of Surah al-Kahf." (Narrated
by Muslim.)
Abu Sa’eed narrated that the Prophet (PBUH) said:
"If anyone recites Surah al-Kahf on Friday, light will shine
brightly for him until the next Friday." (Narrated by al-Hakim and al-Bayhaqi
– an authentic Hadith.)
Reference:
The Quran - English Meanings (By Saheeh
Internationals)