The Christians’ unbelief—manifest in their denial of Muhammad, peace and blessings be upon him, and in their opposition to the Muslims—is more grievous than the Jews’ unbelief in merely rejecting the Messiah; for the Messiah abrogated only a small part of the Torah’s law, while the rest of his rulings referred the people back to the Torah itself. Most of what now passes for the Christian religion, however, was introduced only after the Messiah. Accordingly, the Jews, by merely denying him, were not flouting a divine law that had been revealed in a new, self-contained Book from Allah whose legislation is not referred back to any earlier dispensation.

Allah the Exalted says:

“Is it not enough for them that We have sent down to you the Book that is recited to them? Surely in that is mercy and a reminder for a people who believe.” ⦗al-ʿAnkabūt 29:51⦘

The Qur’an is a foundational scripture like the Torah—indeed, it is greater than the Torah. For this reason Christian scholars customarily link Moses and Muhammad, peace and blessings be upon him, just as the Negus, king of the Christians, exclaimed when he heard the Qur’an: “Indeed, this and that which was brought …”