It was narrated from 'Abdur-Rahman bin Abu Sa'eed Al-Khudri from his father that: The Messenger of Allah said: No woman should look at the nakedness of another woman, and no man should look at the nakedness of another man.
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.'