Bukhari

Narrated Mus`ab bin Sa`d: I offered prayer beside my father and approximated both my hands and placed them in between the knees. My father told me not to do so and said, "We used to do the same but we were forbidden (by the Prophet) to do it and were ordered to place the hands on the knees."

And Abu Humayd narrated before his companions that the Prophet (ﷺ) placed his two hands firmly on his knees during bowing (ruku‘).

And Abu Humayd narrated before his companions that the Prophet (ﷺ) placed his two hands firmly on his knees during bowing (ruku‘).

Narrated Mus`ab bin Sa`d: I offered prayer beside my father and approximated both my hands and placed them in between the knees. My father told me not to do so and said, "We used to do the same but we were forbidden (by the Prophet) to do it and were ordered to place the hands on the knees."