Reference: Fataawa al-Lajnah ad-Daa.imah – Question No.1 of Fatwa No.4600
al-Bid’u wal-Muhdathaat wa maa laa asla lahu – Page 449
Question: What is the ruling regarding sending prayers [and salutations] upon the Prophet Muhammad ﷺ loudly after the congregational prayers, and in the supplication after the congregational prayers?
Response: All Praise is for Allaah the One, and prayers and salutations upon His Messenger and his family and his companions. To proceed:
Firstly: The reward for sending prayers [and salutations] upon the Prophet ﷺ entails great reward, as Allaah the Almighty has commanded in the Noble Qur.aan, and the Prophet ﷺ has encouraged it as he has explained that its reward is multiplied. He said:
It has been legislated for when his name is mentioned, after the tashahhud in the prayer, in the Jumu’ah and Nikaah khutbahs and that which is similar to these. It has not been confirmed on the authority of the Prophet ﷺ, nor his companions (radhi-yAllaahu ‘anhum) and nor the Imaams of the [pious] predecessors – Maalik, Abu Haneefah, al-Layth Ibn Sa’d, ash-Shaafi’ee, al-Awzaa’ee and Ahmad (rahima-humullaah) – that they used to loudly send prayers [and salutaions] upon him ﷺ after the congregational prayers. The good and all that is good is in following his ﷺ guidance and the guidance of the Rightly-Guided Khulafaa. and all of the companions (radhi-yAllaahu ‘anhum). It has been confirmed on his ﷺ authority that he said:
Secondly: Supplicating is [a form of] worship, however, it has not been confirmed on the authority of the Prophet ﷺ nor his Rightly-Guided Khulafaa and nor all his companions (radhi-yAllaahu ‘anhum) that they supplicated as a congregation after the prayer. Since the gathering of worshippers for supplicating after the tasleem from the prayers, as a congregation, was an innovation. It has been confirmed on his ﷺ authority that he said:
And in another narration:
And with Allaah lies all success and may Allaah send prayers and salutations upon our Prophet ﷺ and his family and his companions.