It was narrated that 'Aishah said:
"The Messenger of Allah was performing prayer, and I was by his side. I was menstruating, and I was wearing a wool cloak, and part of it was over him." (ID)
English reference (ID): Vol. 1, Book 1, Hadith 652 (ID)
Arabic reference (ID): Book 1, Hadith 696 (ID)