Safiyya daughter of Huyyay (the wife of Allah' s Apostle) reported that while Allah' s Messenger (may peace be. upon him) had been observing I' tikaf, I came to visit him one night and talked with him for some time. Then I stood up to go back and he (Allah' s Apostle) also stood up with me in order to bid me good-bye. She was at that time residing in the house of Usama b. Zaid. The two persons from the Ansar happened to pass by him. When they saw Allah' s Apostle (ﷺ). they began to walk swiftly, thereupon Allah' s Messenger (ﷺ) said to them: Walk calmy, she is Safiyya daughter of Huyyay... Both of them said: Messenger, hallowed be Allah, (we cannot conceive of ab., ug doubtful even in the remotest corners of our minds), whereupon he said: Satan circulates in the body of man like the circulation of blood and I was afraid lest it should instill any evil in your heart or anything.