Sahih Muslim 249
صحيح مسلم#249SahihAbu Huraira reported:The Messenger of Allah was asked about the best of deeds. He observed: Belief in Allah. He (the inquirer) said: What next? He (the Holy Prophet) replied: Jihad (struggle to the utmost) in the cause of Allah. He (the inquirer) again said: What next? He (the Holy Prophet) replied: Pilgrimage accepted into the grace of the Lord. In the. tradition narrated on the authority of Muhammad b. Ja'far (the words are) that he (the Holy Prophet) said: Belief in Allah and His Messenger. Muhammad b. Rafi and 'Abd b. Humaid, 'Abdur-Razzaq and Ma'mar and Zuhri have narrated a hadith like this on the authority of the same chain of transmitters
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: 1:155