IBN-ABBASS, the famous commentator of Qurän, has narrated that: ``IBN-SURIA the Jewish Rabbi, through his arrogance and pertinacity, said to the prophet: you have brought nothing comprehensible to us, and God HAS not sent down any clear sign or manifest evidence to you, so that we may catch it and follow you! In answer to SURIA's statement, it was revealed that: ``We have indeed sent down to you clear signs which none may deny them except the evil doers.''