Sahih Muslim , Book 30, Hadith 5807 (USC-MSA) ⓘ
Ammar, the freed slave of Banu Hashim, reported that Ibn 'Abbas said that Allah's Messenger died when he had attained the age of sixty-five.
وَحَدَّثَنِي نَصْرُ بْنُ عَلِيٍّ، حَدَّثَنَا بِشْرٌ، - يَعْنِي ابْنَ مُفَضَّلٍ - حَدَّثَنَا خَالِدٌ الْحَذَّاءُ، حَدَّثَنَا عَمَّارٌ، مَوْلَى بَنِي هَاشِمٍ حَدَّثَنَا ابْنُ عَبَّاسٍ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم تُوُفِّيَ وَهُوَ ابْنُ خَمْسٍ وَسِتِّينَ .
also referenced under: Book 43, Hadith 160 (In-Book) & Hadith 2353 (Reference)