Why did Prophet Muhammad (saw) accompany Safiya when she returned from I'tikaf?
 Narrated `Ali bin Al-Husain from Safiya:                     Safiya went to the Prophet while he was in I`tikaf. When she returned, the Prophet accompanied her walking. An Ansari man saw him. When the Prophet noticed him, he called him and said, "Come here. She is Safiya. (Sufyan a sub-narrator perhaps said that the Prophet had said, "This is Safiya"). And Satan circulates in the body of Adam's offspring as his blood circulates in it." (A sub-narrator asked Sufyan, "Did Safiya visit him at night?" He said, "Of course, at night.")