(21) باب غَسْلِ الْحَائِضِ رَأْسَ زَوْجِهَا
It was narrated that 'Aishah said:
"The Prophet (ﷺ) would put his head out while he was performing I'tikaf and I would wash it, while I was menstruating."
Reference: Sunan an-Nasa'i 387
In-book reference: Book 3, Hadith 40
English translation: Vol. 1, Book 3, Hadith 387