Sahih Muslim 1075
صحيح مسلم#1075SahihAbdullah b. 'Abbas reported:The Messenger of Allah (ﷺ) drew aside the curtain and his head was bandaged on account of illness in which he died. He said: O Allah, have I not delivered (Thy Message)? (He repeated it) three times. Nothing has been left out of the glad tidings of apostlebood, but good vision. which a pious servant (of Allah) sees or someone else is made to see for him. He then narrated like the hadith transmitted by Sufyan
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: 4:237