Sahih Muslim 6099
صحيح مسلم#6099SahihJabir reported that he heard Mu'awiya say in his address that Allah's Messenger (ﷺ) died at the age of sixty-three, so was the case with Abu Bakr and 'Umar, and I (am now) sixty-three
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: 43:157