The Book of Prayers
Ṣaḥīḥ Muslim 911
اللَّهُمَّ صَلِّ عَلَى مُحَمَّدٍ وَعَلَى أَزْوَاجِهِ وَذُرِّيَّتِهِ كَمَا صَلَّيْتَ عَلَى آلِ إِبْرَاهِيمَ وَبَارِكْ عَلَى مُحَمَّدٍ وَعَلَى أَزْوَاجِهِ وَذُرِّيَّتِهِ كَمَا بَارَكْتَ عَلَى آلِ إِبْرَاهِيمَ إِنَّكَ حَمِيدٌ مَجِيدٌ
Allāhumma ṣalli ʿalā muḥammadin waʿalā azwājihi wadhurriyyatihi kamā ṣallayta ʿalā āli ibrāhīma wabārik ʿalā muḥammadin waʿalā azwājihi wadhurriyyatihi kamā bārakta ʿalā āli ibrāhīma innaka ḥamīdun majīdun
Transliteration generated from the Arabic vowel marks
The full narration
Abu Humaid as-Sa'idi reported:They (the Companions of the Holy Prophet) said: Apostle of Allah, how should we bless you? He (the Holy Prophet) observed: Say:" O Allah! bless Muhammad, his wives and his offspring as Thou didst bless Ibrahim, and grant favours to Muhammad, and his wives and his offspring as Thou didst grant favours to the family of Ibrahim; Thou art Praiseworthy and Glorious
Source
Ṣaḥīḥ Muslim · 911
- Agreed upon as authentic (al-Bukhārī / Muslim)