أَمۡ يَقُولُونَ ٱفۡتَرَىٰهُۖ قُلۡ فَأۡتُواْ بِسُورَةٖ مِّثۡلِهِۦ وَٱدۡعُواْ مَنِ ٱسۡتَطَعۡتُم مِّن دُونِ ٱللَّهِ إِن كُنتُمۡ صَٰدِقِينَ ٣٨
Or do they say [about the Prophet (ﷺ)], "He invented it?" Say, "Then bring forth a sūrah like it and call upon [for assistance] whomever you can besides Allāh, if you should be truthful."
Translation: Saheeh International (English)
Each word's meaning and sound
Or do these idolaters say that Muhammad (peace and blessings be upon him) came up with the Qur’ān himself claiming that it is from Allah? Say to them O Messenger, 'If I as a human being like you, have been able to come up with it, then you also should bring a chapter like it, and call upon whomever you wish to assist you, if you are telling the truth in claiming that the Qur’ān is not really from Allah. But you have not be able to do so, even though you are talented and eloquent in the language – showing you that the Qur’ān has been revealed by Allah.'
Al-Mukhtasar in interpreting the Noble Quran