Narrated Abu Salama bin `Abdur-Rahman: That he asked `Aisha How was the prayer of Allah's Apostle in the month of Ramadan? She replied, He used not to pray more than eleven rak`at whether in Ramadan or in any other month. He used to offer four rak`at, let alone their beauty and length, and then four rak`at, let alone their beauty and length. Afterwards he would offer three rak`at. I said, 'O Allah's Apostle! Do you go to bed before offering the witr prayer?' He said, 'My eyes sleep, but my heart does not sleep. '