Musnad Ahmad 1153:1759

Abu Kamil narrated to us, he said: Hammad narrated to us, from Hammad, from Ibrahim, from al-Aswad, from Aisha, and Hisham ibn Urwah, from his father, from Aisha, that the Messenger of Allah (peace and blessings of Allah be upon him) intended to depart. It was said to him: "Indeed, Safiyyah bint Huyayy has menstruated." He said: "Is she going to detain us?" They said: "She has already performed the circumambulation (Tawaf) of the House on the Day of Sacrifice." He said: "Then let her depart."