Sahih Muslim 945
صحيح مسلم#945SahihAnas reported:The last glance that I have had of the Messenger of Allah (ﷺ) (before his death) was that when he on Monday drew the curtain aside. The hadith transmitted by Salih is perfect and complete
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: 4:107