What did the Prophet Muhammad (saw) direct us to do when the Imam says 'Sami`a l-lahu liman hamidah'? (saw)
 Narrated Abu Huraira:                     The Prophet said, "The Imam is to be followed. Say the Takbir when he says it; bow if he bows; if he says 'Sami`a l-lahu liman hamidah', say, ' Rabbana wa laka l-hamd', prostrate if he prostrates and pray sitting altogether if he prays sitting."