It was narrated that Umm Salamah said:
"I said, O Messenger of Allah! I am a woman with tight braids. Should I undo them when I take a bath to cleanse myself from the state of sexual impurity?" He said: "Rather it is sufficient for you to pour three handfuls of water over yourself, and you will be purified," or he said: "In that case you would have become purified." (DE)
English reference (DE): Vol. 1, Book 1, Hadith 603 (DE)
Arabic reference (DE): Book 1, Hadith 646 (DE)