Reference: al-Bid’u wal-Muhdathaat wa maa laa Asla lahu – Page 571
Fataawa al-Lajnah ad-Daa.imah lil-Buhooth al-‘Ilmiyyah wal-Iftaa. – Fatwa No.3303
Question: What is the ruling regarding the saying of “sada qAllaahul-‘Adtheem” after finishing reading of the Qur.aan?
Response: All Praise is for Allaah, the One, and prayers and salutations upon His Messenger, his family and his companions. To proceed:
The saying of “sada qAllaahul-‘Adtheem” after finishing reading of the Qur.aan is an innovation. The Prophet (sal-Allaahu ‘alayhi wa sallam) did not do this and nor did the Rightly Guided Khulafaa., nor any of the [other] Companions (radhi-yAllaahu ‘anhum) and nor the Imaams of the [Pious] Predecessors (rahima-humullaah). This being with their vast reading and assistance in spreading it’s (the Qur.aan’s) message and knowing it’s rulings. So the saying of this and adhering to it after finishing the reading [of the Qur.aan] is an innovation. It has been confirmed on the authority of the Prophet (sal-Allaahu ‘alayhi wa sallam) that he said:
«Anyone who introduces something into this matter of ours (i.e. Islaam), that which is not from it, will have it rejected» – this (narration) is agreed upon (by both Imaam al-Bukhaaree and Imaam Muslim).
And in another narration:
«Anyone who does an act which is not in agreement with us, then he will have it rejected» – narrated by Muslim.
And with Allaah lies all success and may Allaah send prayers and salutations upon our Prophet (sal-Allaahu ‘alayhi wa sallam) and his family and his companions.