Al-'Isrā 17:88 · سُورَةُ الإسراء

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, "If mankind and the jinn gathered in order to produce the like of this Qur’ān, they could not produce the like of it, even if they were to each other assistants."

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