What did Prophet Muhammad (saw) say about saying 'Bismillah' while having sexual intercourse?
 Narrated Ibn `Abbas:                     The Prophet said, "If anyone of you, when having sexual intercourse with his wife, says: Bismillah, Allahumma jannibni-Sh-Shaitan wa jannib-ish-Shaitan ma razaqtana, and if it is destined that they should have a child, then Satan will never be able to harm him."