What did the Prophet Muhammad (saw) command when it came to bowing during prayer?
 Mus'ab b. Sa'd b. Abu Waqqas reported:                      I said prayer by the side of my father. When I bowed I intertwined my fingers and placed them between my knees. He struck my hands. When he completed the prayer he said: We used to do that but then were commanded to lift (our palms) to the knees.