Lady Aisha Siddiqa (may Allah be pleased with her) narrates: I said, "O Messenger of Allah (peace and blessings be upon him)! I think we will have to stay because of Lady Safiyyah (may Allah be pleased with her)." The Prophet (peace and blessings be upon him) asked, "What has happened to her?" We said, "She has started menstruating." The Prophet (peace and blessings be upon him) said, "Has she not performed the Tawaf before?" We said, "Yes, but she has started menstruating." The Prophet (peace and blessings be upon him) said, "Then it is not necessary for her to stay; she can depart."