﴿ أَمْ يَقُولُونَ ٱفْتَرَىٰهُ ۖ قُلْ فَأْتُوا۟ بِعَشْرِ سُوَرٍۢ مِّثْلِهِۦ مُفْتَرَيَٰتٍۢ وَٱدْعُوا۟ مَنِ ٱسْتَطَعْتُم مِّن دُونِ ٱللَّهِ إِن كُنتُمْ صَٰدِقِينَ ﴾

“and so they assert, "[Muhammad himself] has invented this [Qur'an)!" Say [unto them]: "Produce, then, ten surahs of similar merit, invented [by yourselves], and [to this end] call to your aid whomever you can, other than, God, if what you say is true!”

(Or they say) Nay, the disbelievers of Mecca say: (He hath invented it) Muhammad has invented the Qur'an and presented it to us. (Say) to them, O Muhammad: (Then bring ten surahs, the like thereof) the like of a surah of the Qur'an, such as surah al-Baqarah, Al 'Imran, al-Nisa', al-Ma'idah, al-An'am, al-A'raf, al-Anfal, al-Tawbah, Yunus, or Hud, (invented) by you, (and call on everyone you can) seek the help of what you worship (beside Allah, if ye are truthful!) that Muhammad (pbuh) has invented it.