What did Prophet Muhammad (saw) do after the second rak'a of the Zuhr prayer?
 Narrated `Abdullah bin Malik bin Buhaina:                     Once Allah's Apostle led us in the Zuhr prayer and got up (after the prostrations of the second rak`a) although he should have sat (for the Tashahhud). So at the end of the prayer, he prostrated twice while sitting (prostrations of Sahu).