Sunan an-Nasa'i 241
سنن النسائي#241SahihIt was narrated that Umm Salamah, the wife of the Prophet (ﷺ), said:"I said: 'O Messenger of Allah, I am a woman with tightly braided hair; should I undo it when performing Ghusl from Janabah?' He said: 'No it is sufficient for you to pour three handfuls of water over your body
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Abu GhuddahSahih
Al-AlbaniSahih
Zubair Ali ZaiSahih Muslim
In-book reference: 1:242