Sunan Abi Dawud
Hadith #799
The above mentioned tradition as been reported by Abu Qatadah through a different chain of narrators. This version adds:He would recite Fatihat al-kitab in the last two surahs. Hammam added: He would prolong the first rakโah but would not prolong the second so much; and he did so similarly in the afternoon prayer, and so in the morning prayer