' Then if they do not answer you...

' Then if they do not answer you, know that it has been sent down with Allah's knowledge, and that there is no god but He." (XI;13-14) "and if you are in doubt about what We have sent down on Our servant, then bring a Surah like it." (II;23) But we see from the testimony of history from then till now no one has had the courage to do this and produce its like.

Of course, during the time of Muhammad (S.A.) and after his death, some Arabs, like Musailemah, Sajah and Ibn Abi'l-'Awja', planned to challenge it but they were not able, and eventually confessed to their incapacity. In the time of…