What were the special procedures adopted by the Prophet Muhammad (saw) whenever it was time to pray while in the house of Anas b. Malik?
 Anas b. Malik reported that the Messenger of Allah (may peace be upon him) wits the best among people in character. On occasions, the time of prayer would come while he was in our house. He would then order to spread the mat lying under him. That was dusted and then water was sprinkled over it. The Messenger of Allah (may peace be upon him) then led the prayer and we stood behind him, and that mat was made of the leaves of date-palm.