Verse 52of 52

If the Prophet forged anything against Allah, then Allah would punish HimAllah says,وَلَوْ تَقَوَّلَ عَلَيْنَا(And if he had forged a false saying concerning Us,) meaning, `if Muhammad forged something against Us, as they claim, and added or removed anything from the Message, or said anything from himself while attributing it to Us, then We would surely be swift in punishing him. And of course, Muhammad ﷺ did not do any of this (as the disbelievers claimed).

Source: Tafsir Ibn Kathir — abridged excerpt