Say, "Believe in it or do not believe." Indeed, those who were given knowledge before it1 - when it is recited to them, they fall upon their faces in prostration,
Translation: Saheeh International (English)
1 i.e., the righteous among the People of the Scriptures who recognize the truth contained in the Qur’ān.
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.