Reference: Fataawa al-Lajnah ad-Daa.imah – Question 7 of Fatwa No.6898
al-Bid’u wal-Muhdathaat wa maa laa asla lahu – Page 199
Question: What is the ruling regarding sending prayers and salutations upon the Prophet ﷺ before the adhaan and after it in a loud voice?
Response: The ruling in this is that it is an innovation which was not done in the time of the Prophet ﷺ and nor in the time of the rightly guided Khulafaa. and nor by any of the companions. It has been confirmed on the authority of the Prophet ﷺ that he said:
«Whoever introduces anything into this matter of ours (i.e. Islaam) that which is not from it, will have it rejected», [Saheeh al-Bukhaaree/2697 and Saheeh Muslim/1718].
And in another narration, by Muslim:
«Whoever does an act which is not in agreement with us (i.e. Allaah (subhaanahu wa ta’aala) and Muhammad ﷺ ) then it will be rejected», [Saheeh Muslim/1718].
It is legislated that the mu.adhdhin quietly [within himself] sends prayers and salutations upon the Prophet ﷺ after the adhaan and not does raise his voice at all when doing so, as doing so is an innovation. So, the adhaan ends when the mu.adhdhin says: «Laa ilaaha ill-Allaah» according to the consensus of the people of knowledge. He should then ask Allaah for his intercession. Likewise it is from the Sunnah for whoever hears the adhaan to repeat that which the mu.adhdhin says [of the adhaan] except when the mu.adhdhin says: «Hayya ‘alas-Salaah» and «Hayya ‘alal-Falaah», thereby one should say: «Laa Hawla wa laa Quwwata illa Billaah». He should then send prayers and salutations upon the Prophet ﷺ and ask Allaah for his intercession.
And with Allaah lies all success and may Allaah send prayers and salutations upon our Prophet Muhammad ﷺ and his family and his companions.