17:88
قُل لَّئِنِ ٱجْتَمَعَتِ ٱلْإِنسُ وَٱلْجِنُّ عَلَىٰٓ أَن يَأْتُوا۟ بِمِثْلِ هَـٰذَا ٱلْقُرْءَانِ لَا يَأْتُونَ بِمِثْلِهِۦ وَلَوْ كَانَ بَعْضُهُمْ لِبَعْضٍ ظَهِيرًا
qul la-ini ij'tamaʿati l-insu wal-jinu ʿalā an yatū bimith'li hādhā l-qur'āni lā yatūna bimith'lihi walaw kāna baʿḍuhum libaʿḍin ẓahīran
Say, ‘Even if all mankind and jinn came together to produce something like this Quran, they could not produce anything like it, however much they helped each other.’
Say: "If the mankind and the jinn were together to produce the like of this Qur’ân, they could not produce the like thereof, even if they helped one another."