Sayyidah Aishah (may Allah be pleased with her) said: Once the Messenger of Allah (peace and blessings be upon him) and Abu Bakr (may Allah be pleased with him) mentioned their births in my presence, and it turned out that the Messenger of Allah (peace and blessings be upon him) was older than Abu Bakr. The Messenger of Allah (peace and blessings be upon him) passed away at the age of sixty-three, and Abu Bakr (may Allah be pleased with him) also passed away at the age of sixty-three, after the two and a half years that he lived after the Messenger of Allah (peace and blessings be upon him).
Hadith Referenceالمعجم الكبير للطبراني / العشرة / 28