Al-Ahqaf · 46:8

8. Do these idolaters say: “Muhammad has made up this Qur’ān and attributed it to Allah?” Say to them, O Messenger: “If I have made it up on my own part, you do not have power over any plan for me if Allah wants to punish me, so how can I put myself at risk of punishment by fabricating against Him? Allah knows better the criticism of His Qur’ān and slandering me you engage in. He, (may He be glorified), is sufficient as a witness between me and you. And He is Forgiving of the sins of His servants who repent to Him, Merciful to them”.