Reason of the Wisdom (Dalile Aaqhl) and its Status on the Deductive Manner of Mohaghegh Helli

Given the importance of the reason of wisdom (Dalile Aghl) in inferring legal rulings, especially in new issue, examining the reason of wisdom would help a better use of the reason of wisdom. Examining the deductive manner of Mohaghegh Helli as an influential jurist in development of jurisprudence is befitting and praiseworthy in proving this issue. For this purpose, his discursive and theological (Usuli) legal texts have been examined on the basis of content analysis method and his legal judgments have been examined one by one. The results of the research indicate that Mohaghegh Helli has used the reason of wisdom for proving the necessity of the book (Quran) and tradition obedience.