What did the Prophet Muhammad (saw) emphasize when he said "Does the observer of prayer not see how he is performing the prayer for he performs it for himself?"
 Abu Huraira reported:                      one day the Messenger of Allah (may peace be upon him) led the prayer. Then turning (towards his Companions) he said: 0 you, the man, why don't you say your prayer well? Does the observer of prayer not see how he is performing the prayer for he performs it for himself? By Allah, I see behind me as I see In front of me.