11:13

أَمْ يَقُولُونَ افْتَرَاهُ قُلْ فَأْتُوا بِعَشْرِ سُوَرٍ مِّثْلِهِ مُفْتَرَيَاتٍ وَادْعُوا مَنِ اسْتَطَعْتُم مِّن دُونِ اللَّهِ إِن كُنتُمْ صَادِقِينَ

Transliteration:

Am yaqooloona iftarahu qul fa/too biAAashri suwarin mithlihi muftarayatin waodAAoo mani istataAAtum min dooni Allahi in kuntum sadiqeena

Word by Word:

Or they say, "He has fabricated it." Say, "Then bring ten Surahs like it fabricated, and call whoever you can besides Allah if you are truthful."

Translations:

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 may say, "He forged it," Say, "Bring ye then ten suras forged, like unto it, and call (to your aid) whomsoever ye can, other than God!- If ye speak the truth!

Or they say: He hath invented it. Say: Then bring ten surahs, the like thereof, invented, and call on everyone ye can beside Allah, if ye are truthful!

Or, say they: He has forged it. Say: Then bring ten forged chapters like it, and call upon whom you can besides Allah, if you are truthful.

Or do they say, "He invented it"? Say, "Then bring ten surahs like it that have been invented and call upon [for assistance] whomever you can besides Allah , if you should be truthful."