"Al-Bukhari had related, from ‘Ubayd b. Isma‘il, from Abu Usama, from Hisham b. ‘Urwa, from his father, who said, "Khadija died three years before the emigration of the Prophet (SAAS). He allowed a couple of years or so to pass after that, and then he contracted marriage with ‘A’isha when she was six, thereafter consummating marriage with her when she was nine years old.""