Sahih Muslim 2207
صحيح مسلم#2207SahihJabir b. 'Abdullah reported that the Messenger of Allah (ﷺ) offered prayer for Ashama, the Negus, and recited four takbirs
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: 11:85