Sunan Abu Dawud
Prayer (Kitab Al-Salat)
Hadith #588
2.588
حَدَّثَنَا مُسَدَّدٌ، حَدَّثَنَا يَزِيدُ بْنُ زُرَيْعٍ، حَدَّثَنَا شُعْبَةُ، بِهَذَا الْحَدِيثِ قَالَ " صَلِّ عَلَى مُحَمَّدٍ وَعَلَى آلِ مُحَمَّدٍ كَمَا صَلَّيْتَ عَلَى إِبْرَاهِيمَ " .
This tradition has also been reported by Shu’bah through a different chain of narrators. This version adds:Bless Muhammad and Muhammad’s family as Thou didst bless Abraham