Hazrat Abu Sayeed Al-Khudri RadiyAllahu Anhu se Riwayat hai ke RasoolAllah ﷺ ne Irshad Farmaya: "Jo shaks Jumah ke din Surah Al-Kahf ki Tilawat kare to us ke liye is Jumah aur Agle Jumah ke Darmiyan Noor Jagmagata Rahega. [Urdu Ref :: Mustadrak Al-Hakim :: Hadith 3392]
Abu Darda' reported Allah's Apostle (ﷺ) as saying:
If anyone learns by heart the first ten verses of the Surah al-Kahf, he will be protected from the Dajjal.
Reference : Sahih Muslim 809a / 1883