Al-Isra · 17:107

107. Say, O Messenger: Believe in it, for your belief will not increase it in any way, or do not believe in it, for your disbelief will not decrease it in any way. Surely, those who read the previous divine books and who understood the revelation and prophecy when the Qur’ān is recited to them fall on their faces, prostrating to Allah out of gratitude.