Sahih Bukhari Volume 005, Book 058, Hadith Number 242.
Hadith Section/Book: Sahih Bukhari Sahih Bukhari Book 58. Merits of the Helpers in Madina (Ansaar)
Narated By Ibn Abbas : Allah's Apostle started receiving the Divine Inspiration at the age of forty. Then he stayed in Mecca for thirteen years, receiving the Divine Revelation. Then he was ordered to migrate and he lived as an Emigrant for ten years and then died at the age of sixty-three (years).