It is narrated from Umm al-Mu'mineen Hazrat Aisha (may Allah be pleased with her) that the Prophet (peace and blessings be upon him) said to me: "Pick up the mat from the mosque and give it to me." I said, "I am in my days (i.e., menstruating)." The Prophet (peace and blessings be upon him) said, "Your menstruation is not in your hand."