11:13
أَمْيَقُولُونَٱفْتَرَىٰهُ ۖقُلْفَأْتُوا۟بِعَشْرِسُوَرٍمِّثْلِهِۦمُفْتَرَيَٰتٍوَٱدْعُوا۟مَنِٱسْتَطَعْتُممِّندُونِٱللَّهِإِنكُنتُمْصَٰدِقِينَ١٣
am yaqūlūna if'tarāhu qul fatū biʿashri suwarin mith'lihi muf'tarayātin wa-id'ʿū mani is'taṭaʿtum min dūni l-lahi in kuntum ṣādiqīna
Or do they say, "He invented it"? Say, "Then bring ten sūrahs like it that have been invented and call upon [for assistance] whomever you can besides Allāh, if you should be truthful."(13)