Sunan Ibn Majah
Hadith #662
It was narrated from a freed slave of 'Aishah that:'Aishah said: ""I never looked at (or I never saw) the private part of the Messenger of Allah."" (Da'if)(One of the narrators) Abu Bakr (Ibn Abu Shaibah) said: ""Abu Nu'aim would say: '(From) a freed female slave of 'Aishah