وَإِن كُنتُمْ فِى رَيْبٍ مِّمَّا نَزَّلْنَا عَلَىٰ عَبْدِنَا فَأْتُوا۟ بِسُورَةٍ مِّن مِّثْلِهِۦ وَٱدْعُوا۟ شُهَدَآءَكُم مِّن دُونِ ٱللَّهِ إِن كُنتُمْ صَـٰدِقِينَ

And if you are in doubt about what We have sent down [i.e., the Qur’ān] upon Our Servant [i.e., Prophet Muḥammad (ﷺ)], then produce a sūrah the like thereof and call upon your witnesses [i.e., supporters] other than Allāh, if you should be truthful.

البقرة 23

أَفَلَا يَتَدَبَّرُونَ ٱلْقُرْءَانَ ۚ وَلَوْ كَانَ مِنْ عِندِ غَيْرِ ٱللَّهِ لَوَجَدُوا۟ فِيهِ ٱخْتِلَـٰفًا كَثِيرًا

Then do they not reflect upon the Qur’ān?1 If it had been from [any] other than Allāh, they would have found within it much contradiction.

النساء 82

يَـٰٓأَيُّهَا ٱلنَّاسُ قَدْ جَآءَكُم بُرْهَـٰنٌ مِّن رَّبِّكُمْ وَأَنزَلْنَآ إِلَيْكُمْ نُورًا مُّبِينًا

O mankind, there has come to you a conclusive proof from your Lord, and We have sent down to you a clear light.1

النساء 174

وَلَوْ نَزَّلْنَا عَلَيْكَ كِتَـٰبًا فِى قِرْطَاسٍ فَلَمَسُوهُ بِأَيْدِيهِمْ لَقَالَ ٱلَّذِينَ كَفَرُوٓا۟ إِنْ هَـٰذَآ إِلَّا سِحْرٌ مُّبِينٌ

And even if We had sent down to you, [O Muḥammad], a written scripture on a page and they touched it with their hands, the disbelievers would say, "This is not but obvious magic."

الأنعام 7

أَمْ يَقُولُونَ ٱفْتَرَىٰهُ ۖ قُلْ فَأْتُوا۟ بِسُورَةٍ مِّثْلِهِۦ وَٱدْعُوا۟ مَنِ ٱسْتَطَعْتُم مِّن دُونِ ٱللَّهِ إِن كُنتُمْ صَـٰدِقِينَ

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."

يونس 38