I used to drink while menstruating, then pass the cup to the Prophet ﷺ, and he would place his mouth on the very spot where mine had been and drink. I would also gnaw on a bone while menstruating, then pass it to the Prophet ﷺ, and he would place his mouth on the very spot where mine had been.
كنت أشرب وأنا حائض، ثم أناوله النبي ﷺ، فيضع فاه على موضع في فيشرب، وأتعرق العرق وأنا حائض، ثم أناوله النبي ﷺ فيضع فاه على موضع في.
Muslim narrated it in the book of Menstruation (300), through Miqdam bin Shurayh, from his father, from Ayesha. He mentioned it. And in Sunan Abu Dawud (259), "I would gnaw at the bone while I was menstruating and then give it to the Prophet ﷺ, and he would put his mouth in the same place where I had put mine." The gnawed bone means the bone with the meat still on it. She means that she would bite it and take the meat that was on it. Khattabi said. It appears in the margin of the Indian edition, "Her saying 'ataarraqu,' with the ain vowelled with a fatha and the ra with a sukun, means I take the meat off the bone with my teeth. It is a bone from which most of the meat has been taken, with a remainder still left on it."