(32) باب كَمْ سِنُّ النَّبِيِّ صلى الله عليه وسلم يَوْمَ قُبِضَ .
Anas b. Malik reported that Allah's Messenger (ﷺ) died when he was sixty-three years old, and so was the case with Abu Bakr, and so was the case with Umar who was also sixty-three (when he died).
Reference: Sahih Muslim 2348
In-book reference: Book 43, Hadith 149
USC-MSA web (English) reference(deprecated numbering scheme): Book 30, Hadith 5796