Sahih al-Bukhari is a collection of hadith compiled by Imam Muhammad al-Bukhari (d. 256 AH/870 AD) (rahimahullah). His collection is recognized by the overwhelming majority of the Muslim world to be the most authentic collection of reports of the
Sunnah of the Prophet Muhammad (It contains over 7500 hadith (with repetitions) in 97 books. The translation provided here is by Dr. M. Muhsin Khan.)
Sahih Bukhari
Dar-us-Salam reference
Hadith 3896
In-book reference
Book 63, Hadith 122
USC-MSA web (English) reference
Volume 5, Book 58, Hadith 236
Narrated Hisham's father:
Khadija died three years before the Prophet (ﷺ) departed to Medina. He stayed there for two years or so and then he married `Aisha when she was a girl of six years of age, and he consumed that marriage when she was nine years old.
حَدَّثَنِي عُبَيْدُ بْنُ إِسْمَاعِيلَ، حَدَّثَنَا أَبُو أُسَامَةَ، عَنْ هِشَامٍ، عَنْ أَبِيهِ، قَالَ تُوُفِّيَتْ خَدِيجَةُ قَبْلَ مَخْرَجِ النَّبِيِّ صلى الله عليه وسلم إِلَى الْمَدِينَةِ بِثَلاَثِ سِنِينَ، فَلَبِثَ سَنَتَيْنِ أَوْ