nature of fulfillment of obligation in jurisprudence and law

delivery in the iranian law has two specific and general meanings. the strict meaning of delivery is to hand over the substance to another person. but delivery in its broad meaning includes handing over of substance, interests, and action. this broad meaning of delivery is almost synonymous with performing contracts or doing the obligations of contracts. the civil code of iran has mentioned the delivery rules governing or performing the contracts sporadically. volition has no role in essence but is only effective in the case of a general substance. the customer shall be obliged to apply the necessary permission to create the illusion that in such cases delivery is a legal action. foreign law is unable to identify a general and credit obligation because the general substance’s sale isn’t given possession but has been considered as an obligation. in islamic law and religious jurisprudence, ownership in its general sense has been accepted, general substance’s sale is given possession and general substance’s delivery is a legal incident.