The Book of Marriage
26/29. Chapter:
A Man Marrying Off His Young Daughter
Sunan an-Nasai
أَخْبَرَنَا مُحَمَّدُ بْنُ النَّضْرِ بْنِ مُسَاوِرٍ، قَالَ حَدَّثَنَا جَعْفَرُ بْنُ سُلَيْمَانَ، عَنْ هِشَامِ بْنِ عُرْوَةَ، عَنْ أَبِيهِ، عَنْ عَائِشَةَ، قَالَتْ تَزَوَّجَنِي رَسُولُ اللَّهِ صلى الله عليه وسلم لِسَبْعِ سِنِينَ وَدَخَلَ عَلَىَّ لِتِسْعِ سِنِينَ .
It was narrated that 'Aishah said: "The Messenger of Allah married me when I was seven years old, and he consummated the marriage with me when I was nine."
Reference : Sunan an-Nasa'i 3256In-book reference : Book 26, Hadith 61English translation : Vol. 4, Book 26, Hadith 3258