Sahih Muslim · Hadith 6248
The Book Pertaining to the Excellent Qualities of the Holy Prophet (may Peace be upon them) and His - كتاب الفضائل
وحدثني نصر بن علي، حدثنا بشر، - يعني ابن مفضل - حدثنا خالد الحذاء، حدثنا عمار، مولى بني هاشم حدثنا ابن عباس، أن رسول الله صلى الله عليه وسلم توفي وهو ابن خمس وستين .
Ammar, the freed slave of Banu Hashim, reported that Ibn 'Abbas said that Allah's Messenger (may peace be upon him) died when he had attained the age of sixty-five.
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).