(7) باب الاِسْتِتَارِ عِنْدَ الاِغْتِسَالِ
It was narrated that Maimunah said:
"I put some water out for the Messenger of Allah (ﷺ), then I concealed him" - and she mentioned how he performed Ghusl, then she said: "Then I brought him a cloth (a towel) but he did not want it."
Reference: Sunan an-Nasa'i 408
In-book reference: Book 4, Hadith 13
English translation: Vol. 1, Book 4, Hadith 408