Sahih al-Bukhari 3903
صحيح البخاري#3903SahihNarrated Ibn `Abbas:Allah's Messenger (ﷺ) stayed in Mecca for thirteen years (after receiving the first Divine Inspiration) and died at the age of 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 al-Bukhari is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 63:128