By exceptional verses is meant makki verse in madani chapter and madani verse in makki chapter. There cannot be found any reference to this theory in sources in first and second century of Hijri. In the third, however, it was found on a small scale; in the next two centuries, the number of the cases increased gradually and in the sixth and seventh it came to its ultimate point. Therefore, there can be found 197 madani verses in makki chapters and, 26 makki verses in madani ones in the sources. Scholars in the field of Quranic sciences have defined makki and madani chapters on different standards of address, place and time. The paper has known time as the best and, presenting the proofs of those believing in exceptions critically, rejected the theory.