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The issue of authenticity of the Shiite tradition is the most important challenges between Shiite scholars of Akhbarees and Usulees. The former believes in absolute authority of Shiite traditions while the latter believes only in authority of traditions that transmitted by authentic narrators. This article holds that the "common acceptance" is the criterion for adopting or rejecting a tradition. According to this criterion all narratives in the four great books of Shiite tradition i.e. Kafi, Faqhih, Tahdhib and Estebsar are authorized provided absence any problems in the text.