Narrated 'Aisha: that the Prophet married her when she was six years old and he consummated his marriage when she was nine years old. Hisham said: I have been informed that 'Aisha remained with the Prophet for nine years (i.e. till his death)." what you know of the Quran (by heart)'
— Sahih Bukhari, Volume 7, Book 62: Wedlock, Marriage (Nikaah), Hadith #65