"The Messenger of Allah ﷺ used to put his mouth on the place where I had drunk from, and he would drink from what was leftover by me, while I was menstruating."
كَانَ رَسُولُ اللَّهِ ﷺ يَضَعُ فَاهُ عَلَى الْمَوْضِعِ الَّذِي أَشْرَبُ مِنْهُ فَيَشْرَبُ مِنْ فَضْلِ سُؤْرِي وَأَنَا حَائِضٌ