Sahih Bukhari
Bathing (Ghusl)
Volume: 001 / Book Number: 005 / Hadith Number: 278
Narrated Um Hani bint Abi Talib:
I went to Allah's Apostle in the year of the conquest of Mecca and found him taking a bath while Fatima was screening him. The Prophet asked, "Who is it?" I replied, "I am Um-Hani."