[Machine] The Messenger of Allah ﷺ used to seclude himself in the mosque and would put his head out so that I could wash his head with Al-Khitmi while I was on my period.  

كَانَ رَسُولُ اللهِ ﷺ «مُعْتَكِفًا فِي الْمَسْجِدِ فَيُخْرِجُ رَأْسَهُ فَأَغْسِلُهُ بِالْخِطْمِيِّ وَأَنَا حَائِضٌ»