From Sahih Bukhari (Hadith 280):
Narrated Um Hani bint Abi Talib:I went to Allah's Messenger (ﷺ) in the year of the conquest of Mecca and found him taking a bath while Fatima was screening him. The Prophet (ﷺ) asked, "Who is it?" I replied, "I am Um-Hani
Reference: Bukhari 280