This prayer is taken from Sayyidi Habib Umar bin Hafiz’s collection of prayers using Allah’s beautiful names in which he calls upon Allah by His beautiful names and then asks Him to bestow prayers upon His Beloved by those names. Finally, he asks Allah for a portion of those attributes which belong to Allah and which He has bestowed upon His Messenger ﷺ.
اللَّهُمَّ يا اللهُ يا بَاسِطُ صَلِّ على عَبْدِكَ و حَبِيبِكَ سَيِّدِنا مُحَمَّدٍ النَّبِيِّ بَاسِطِ المَعْرُوفِ و على آلِهِ و صَحْبِهِ و سَلِّمْ تَسْلِيماً و ابْسُطْ لِي بِهِ بِسَاطَ كَرَمِكَ فَضْلاً و إِحْسَاناً
Allāhumma yā Allāhu yā Bāsiṭu ṣalli ‘alā ‘abdika wa ḥabībika sayyidinā Muḥammad an-nabī bāsiṭi’l-ma’rūfi wa ‘alā ālihi wa ṣaḥbihi wa sallim taslīman w’absuṭ lī bihi bisāṭa karamika faḍlan wa iḥsānā
O Allah, O He Who expands and extends, bestow abundant prayers and peace upon Your slave and beloved, our Master Muhammad, the Prophet, the one who extends goodness to all and upon his Family and Companions, and by him extend to me Your generosity out of Your bounty and kindness.