Musnad Ahmad 1153:2145

Yahya ibn Adam narrated to us, he said: Sufyan narrated to us, from Mansur, from Ibrahim, from al-Aswad, from Aisha, that Safiyyah menstruated before the departure (nafr), so she asked the Prophet, peace and blessings of Allah be upon him. He said: "Did you perform the circumambulation (tawaf) of the Day of Sacrifice?" She said: "Yes." So he commanded her to depart, and she departed.