Sahih Muslim 6428
صحيح مسلم#6428SahihAnas b. Malik reported:I set out along with Jabrir b. 'Abdullah al-Bajali on a journey and he used to serve me. I said to him: Don't do that. Thereupon he said: I have seen Ansar doing this with Allah's Messenger (ﷺ). I swore by Allah whenever I accompany any one of the Ansar, I would serve him and Ibn Muthanni, and Ibn Bashshir made this addition in their narrations: Jarir was older than Anas, and Ibn Bashshir said: He was of a more advanced age as compared with Anas. Allah's Apostle (ﷺ) invoked blessings for the tribes of Ghifar and Aslam
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: 44:257