اَفَلَا يَتَدَبَّرُوْنَ الْقُرْاٰنَؕ وَلَوْ كَانَ مِنْ عِنْدِ غَيْرِ اللّٰهِ لَوَجَدُوْا فِيْهِ اخْتِلَافًا كَثِيْرًا ٨٢
Translation
Do they not contemplate the Quran? Had it been from [someone] other than Allah, they would have surely found much discrepancy in it.