It was narrated that 'Aishah said:
"I used to eat the meat from a bone when I was menstruating, then the Messenger of Allah would take it and put his mouth where my mouth had been. And I would drink from a vessel, and the Messenger of Allah would take it and put his mouth where my mouth had been, and I was menstruating." (ES)
English reference (ES): Vol. 1, Book 1, Hadith 643 (ES)
Arabic reference (ES): Book 1, Hadith 686 (ES)