Safwan bin Slym al-Madni صفوان بن سليم المدني أبو عبد الله · The Book of Ghusl and Tayammum

"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."