And Harun ibn Sa'id al-Ayli narrated to me, Ibn Wahb narrated to us, 'Amr ibn al-Harith informed me, from Muhammad ibn 'Abd al-Rahman ibn Nawfal, from 'Urwah ibn al-Zubayr, from 'A'ishah, the wife of the Prophet, may Allah bless him and grant him peace, that she said: "The Messenger of Allah, may Allah bless him and grant him peace, would bring his head out to me from the mosque while he was in seclusion (i'tikaf), and I would wash it while I was menstruating."