قُل لَّئِنِ ٱجْتَمَعَتِ ٱلْإِنسُ وَٱلْجِنُّ عَلَىٰٓ أَن يَأْتُوا۟ بِمِثْلِ هَـٰذَا ٱلْقُرْءَانِ لَا يَأْتُونَ بِمِثْلِهِۦ وَلَوْ كَانَ بَعْضُهُمْ لِبَعْضٍ ظَهِيرًا
Qul la'inij tama'atil insu waljinnu 'alaaa any yaatoo bimisli haazal quraani laa yaatoona bimislihee wa law kaana ba'duhum liba 'din zaheeraa
Say: if humankind and the jinn were to join together to produce the like of this Qur'an, they could not produce its like, even if they backed one another.