Imam Ahmad recorded from Abu Humayd As-Sa`idi that they said: "O Messenger of Allah, how can we send Salah upon you'' He said,

«قُولُوا: اللَّهُمَّ صَلِّ عَلَى مُحَمَّدٍ وَأَزْوَاجِهِ وَذُرِّيَّتِهِ، كَمَا صَلَّيْتَ عَلَى إِبْرَاهِيمَ، وَبَارِكْ عَلَى مُحَمَّدٍ وَأَزْوَاجِهِ وَذُرِّيَّتِهِ كَمَا بَارَكْتَ عَلَى آلِ إِبْرَاهِيمَ، إِنَّكَ حَمِيدٌ مَجِيد»

(Say: "O Allah, send Your Salah upon Muhammad and his wives and offspring, as You sent Your Salah upon Ibrahim, and send Your blessings upon Muhammad and his wives and offspring, as You sent Your blessings upon the family of Ibrahim, verily You are Most Praiseworthy, Most Glorious.'')'' It was also recorded by the rest of the Group, apart from At-Tirmidhi.