And when Our clear signs are recited unto them, then those who hope not to meet Us begin to say, 'bring a Quran other than this, or alter it. Say you, 'it is not for me to change it on my own accord. I only follow, what is revealed to me if I disobey my Lord, then I fear the torment of the great Day.[10:15]
It is narrated on the authority of Humran that he heard Uthman saying this: I heard the Messenger of Allah (may peace be upon him) uttering these words (as stated above).