The Book of Ghusl and Tayammum
4/7. Chapter:
Concealing Oneself When Performing Ghusl
Sunan an-Nasai
أَخْبَرَنَا قُتَيْبَةُ، قَالَ حَدَّثَنَا عَبِيدَةُ، عَنِ الأَعْمَشِ، عَنْ سَالِمٍ، عَنْ كُرَيْبٍ، عَنِ ابْنِ عَبَّاسٍ، عَنْ مَيْمُونَةَ، قَالَتْ وَضَعْتُ لِرَسُولِ اللَّهِ صلى الله عليه وسلم مَاءً - قَالَتْ - فَسَتَرْتُهُ فَذَكَرَتِ الْغُسْلَ قَالَتْ ثُمَّ أَتَيْتُهُ بِخِرْقَةٍ فَلَمْ يُرِدْهَا .
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 408In-book reference : Book 4, Hadith 13English translation : Vol. 1, Book 4, Hadith 408