Sahih Muslim
The Book Pertaining to the Excellent Qualities of the Holy Prophet (may Peace be upon them) and His Companions (Kitab Al-Fadail)
Book Number: 030 / Hadith Number: 5804
Jabir reported that he heard Mu'awiya say in his address that Allah's Messenger (may peace be upon him) died at the age of sixty-three, so was the case with Abu Bakr and 'Umar, and I (am now) sixty-three.