Position of Restitutionary Liability Theory in Jurisprudence

In Imamieh jurisprudence, the purpose of the rules of civil liability is to compensate for losses and for this reason the liability assessment criterion (wrongdoer) is based on the losses incurred to the loser. While there is a different responsibility from civil liability that its purpose is to prevent the defendant of unjust enrichment rather than to compensate the plaintiff for loss suffered. The existence of numerous examples of this feature has led to the development of a new theory of "restitutionary liability " against civil liability in the legal system. The question now is that the basis of this theory with the purpose and the criteria, for which it was said, is capable of designing and defending in the Imam's jurisprudence? If the answer is yes which principles and rules of jurisprudence can entail the theorem? The author believes that the basics and examples of this theory are in the form of rules such as prohibition of eating another property and if it's true binding corrupt it is binding and in some topics liability, such as, risk and confiscation. Because the primary purpose of these rules is preventing of unjust enrichment and the result of using it is primarily the return of the property or its owner. This goal is more consistent with the characteristics of restitutionary liability (which is gain based), not with the indicators of civil liability that is damage based.