Sheikh Abu Ja'afar Tusi (may Allah have mercy on him) in the book "Mukhtasaril Misbaah" when mentioning the duties on the Friday night said: "recite the following when sending blessing to the holy Prophet (peace be upon him and his family):
اَللّٰهُمَّ صَلِّ عَلٰى مُحَمَّدٍ وَاٰلِ مُحَمَّدٍ، وَعَجِّلْ فَرَجَهُمْ، وَاَهْلِكْ عَدُوَّهُمْ مِنَ الْجِنِّ وَالْاِنْسِ، مِنَ الْاَوَّلِيْنَ وَالْاٰخِرِيْنَ۔
(You recite it either (100) one hundred times or to your ability).