(21) باب غَسْلِ الْحَائِضِ رَأْسَ زَوْجِهَا
It was narrated from 'Aishah:
"The Messenger of Allah (ﷺ) used to put his head out of the Masjid while he was performing I'tikaf, and I would wash it, while I was menstruating."
Reference: Sunan an-Nasa'i 388
In-book reference: Book 3, Hadith 41
English translation: Vol. 1, Book 3, Hadith 388