What was the Prophet Muhammad (saw)'s response when he was told that he only prayed two rak`at for the Zuhr prayer?
 Narrated Abu Huraira:                     The Prophet prayed two rak`at of Zuhr prayer (instead of four) and he was told that he had prayed two rak`at only. Then he prayed two more rak`at and finished them with the Taslim followed by two prostrations.