What did Allah (swt) reveal that enabled the Prophet Muhammad (saw) to turn towards the Ka`ba for prayer?
 Narrated Al-Bara':                     When Allah's Apostle arrived at Medina, he prayed facing Jerusalem for sixteen or seventeen months but he wished that he would be ordered to face the Ka`ba. So Allah revealed: -- 'Verily! We have seen the turning of your face towards the heaven; surely we shall turn you to a prayer direction (Qibla) that shall please you.' (2.144) Thus he was directed towards the Ka`ba. A man prayed the `Asr prayer with the Prophet and then went out, and passing by some people from the Ansar, he said, "I testify. that I have prayed with the Prophet and he (the Prophet) has prayed facing the Ka`ba." Thereupon they, who were bowing in the `Asr prayer, turned towards the Ka`ba.