بسم الله الرحمن الرحيم
It is legistlated after the adhaan and after responding to the muadhin and (then after) sending peace and blessings upon the Prophet -May Allah’s Peace be Upon Him- that he says what is reported from the Prophet
“اللَّهُمَّ رَبَّ هَذِهِ الدَّعْوَةِ التَّامَّةِ، وَالصَّلَاةِ الْقَائِمَةِ، آتِ مُحَمَّداً الْوَسِيلَةَ وَالْفَضِيلَةَ، وَابْعَثْهُ مَقَاماً مَحْمُوداً الَّذِي وَعَدْتَهُ،1
Because that is affirmed from the prophet -May Allah’s Peace be Upon Him- from the hadith of Jaabir bin Abdillah al-Ansaari-May Allah be pleased with him- in Sahih Al-Bukhaari, and that is without raising of the hands, because that is not reported in this place, so it is considered an innovation to do it.
Al-Lajnah Ad-Daa’imah: 16874
1. O Allah , Lord of this perfect call and established prayer. Grant Muhammad the intercession and favor, and raise him to the honored station You have promised him