38أَم يَقولونَ افتَراهُ ۖ قُل فَأتوا بِسورَةٍ مِثلِهِ وَادعوا مَنِ استَطَعتُم مِن دونِ اللَّهِ إِن كُنتُم صادِقينَMuhammad AsadAnd yet,1 they [who are bent on denying the truth] assert, "[Muhammad] has invented it!" Say [unto them]: "Produce, then, a surah of similar merit; and [to this end] call to your aid whomever you can, other than God, if what you say is true!2According to the great philologist Abu 'Ubaydah Ma'mar ibn al-Muthanni (as quoted by Baghawi), the particle am which introduces this sentence has no interrogative connotation, but is - as in several other places in the Qur'an - synonymous with the conjunction wa ("and"), which in this case can be suitably rendered as above.Cf. 2:23 and the corresponding note 15.