Umm Salamah said:one of the Muslims asked, and Zubair reported: Umm Salamah (herself) asked: Messenger of Allah. I am a women who keeps her hair closely plaited; should I undo it when I wash after sexual defilement? He replied (no), it is enough for you to throw three handfuls over it. Then pour water over all your body and will be purified

English translation · Sunan Abu Dawud