Background and Aim: So far, no independent research has been conducted under this title, The innovative aspect of the current research is to examine the rule of law with its purposes and functions in Iranian jurisprudence and law, and the purpose of conducting the current research is to explain the nature and scope of this rule.
Materials and Methods: The research method is descriptive and analytical and this research is theoretical. The method that has been used to collect information is in the form of a library and it has been done by referring to international and domestic books, articles and documents.
Ethical Considerations: In this article, the originality of the text, honesty and trustworthiness are observed.
Findings: The rule of matters related to intentions is one of the most practical rules This rule is not recognized in Imami jurisprudence and Iranian law, while several foundations and advantages of this rule are evident in jurisprudence and related laws. According to the mentioned rule, the ruling that is imposed on an order is based on the intention that comes from that order.
Conclusion: In Iranian law, the provisions of this rule have been considered. For example, from Article 191 of the Civil Code and other articles of the Civil Code, such as Articles 192 and 193, it can be understood that the legislator considers it sufficient to conclude a contract with an indication and action that shows intention and consent.