Customary Implied Term: A case Study of Article 356 of the Civil Code: Rule or Exception

Accessories to the object of sale has always been under discussion and debate among jurisprudents and lawyers. Is customary intention a criterion towards determining the accessories to the object of sale? Or the very parties to the contract should necessarily agree on it though in an implied way? If recognition of the accessories is left to the common usage، Is it a rule or an exception to the rule? Can common usage lie next to other religious proofs and determine the facts under law، or it is necessary for it to be approved and authorized by the divine legislator? The present article studies the foundations of customary implied terms towards responding to these questions. These responses can be quite useful for judges towards settling legal cases.