Sahih Muslim 1883
صحيح مسلم#1883SahihAbu 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
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Every narration in Sahih Muslim is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 6:311