Reviews of the martyr Sadr (mercy upon him) in chapter»consensus» in the book " lessons in science of princi(ples (ring second

In this paper, we express the introduction about consensus including (literal and technical meaning of consensus, different definitions between Shiites and Sunnis, unveiling of consensus, due to consensus, consensus types and..) to has a primary understanding of our deliberation then we consider the Mr. Martyr Sadr’s comments (mercy upon him). The centrality of the article, explain and canonization the comments of mr.sadr and this research written to promote the scientific. We first examine the meaning of the literal and technical consensus then expressed definitions of Shiite and Sunni scholars about consensus and we express the reason of Sunni on the definition of consensus. Thereafter refer to forms of Shiite scholars or their argument and then consider the origin and the reasons for defining the Sunni consensus, and then we express the split of consensus. Then we reach to martyr Sadr’s comments (mercy upon him). He refers to similarities and differences between consensus and frequency after the definition of consensus and expressions of the way proven religious arguments based on the calculus of probabilities. Consensus and frequency are like but in some ways are different. Then martyr Sadr says his opinion about argument of consensus and states that consensus based on the calculus of probabilities, per se is not argument; and notes that opponents of the controversial discovery of religious arguments. Sometimes is harmful and sometimes it does not and this issue depending on the character of consensus, opposite character and other quality affairs. This research is literary based and in terms of genealogy placed in the category of principles of jurisprudence.