Imam Zain al-Abidin narrates: The noble wife of the Prophet Muhammad (peace be upon him), Lady Safiyyah (may Allah be pleased with her), informed him that once she came to the service of the Prophet Muhammad (peace be upon him) while he was observing i'tikaf during the last ten days of Ramadan. When Lady Safiyyah (may Allah be pleased with her) stood up to leave, the Prophet Muhammad (peace be upon him) also stood up with her to see her off. When he (peace be upon him) reached near the door of the mosque—the door that was close to the door of Lady Umm Salamah (may Allah be pleased with her)—two men from the Ansar passed by. Both of them greeted the Prophet Muhammad (peace be upon him) with salam and then moved aside. The Prophet Muhammad (peace be upon him) said to both of them, "Wait, this is Safiyyah bint Huyayy (who is my wife)." Both of them said, "Glory be to Allah, O Messenger of Allah (peace be upon him)! (Could we ever think such a thing about you?)" This was very hard for both of them. So the Prophet Muhammad (peace be upon him) said, "Satan circulates in the veins of man. I feared that he might cast some evil thought into your hearts."