Hazrat Aisha (may Allah be pleased with her) narrates that the Messenger of Allah (peace and blessings be upon him) would extend his blessed head towards me while I was in the state of menstruation and he was in the state of i'tikaf. Then the Messenger of Allah (peace and blessings be upon him) would place his blessed head in my lap and I would wash and comb his hair while I was in the state of menstruation.