This study show a critical and valuable methodology of sebawiah in aiming the book . The books writer and his aims depend on explicit and clear fact . Which determines the wrong and presents the reasoner . This study determines and show his method ( Sebawaih ) and explains his ideology . This study leads us towords a near point of Grammatical proofs . It is serious in clearing sebawaih's point of view and how to put it as criteria . whenever makes the other is a subhect of criticism .