سُنَنُ النَّسَائِيِّ
Sunan an-Nasa’i 3257
The Book of Marriage
A Man Marrying Off His Young Daughter
أَخْبَرَنَا قُتَيْبَةُ، قَالَ حَدَّثَنَا عَبْثَرٌ، عَنْ مُطَرِّفٍ، عَنْ أَبِي إِسْحَاقَ، عَنْ أَبِي عُبَيْدَةَ، قَالَ قَالَتْ عَائِشَةُ تَزَوَّجَنِي رَسُولُ اللَّهِ صلى الله عليه وسلم لِتِسْعِ سِنِينَ وَصَحِبْتُهُ تِسْعًا .
It was narrated that Abu 'Ubaidah said: "Aishah said: 'The Messenger of Allah married me when I was nine and I lived with him for nine years.'"
Sunan an-Nasa'i, 3257sahih (Darussalam)