Sahih Muslim 450
صحيح مسلم#450SahihHammad b. Salama narrated it on the same authority and added:He then recited the verse:" Those who do good will have the best reward and even more" (x)
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: 1:355