Arabic (بيع المواصفة) for the sale (bay’) of goods that have not been actually or constructively possessed by the seller. This involves the sale of goods by describing them to the prospective buyer without inspection, with delivery being deferred to some future date. The transaction will be carried out in earnest after the seller acquires the goods and has them in his possession. In this type of sale, the underlying goods are not present at the time of the contract. In this sense, bay’ al-muwasafah belongs to the class of buyu’ al-gharar because it is typically associated with some degree of uncertainty as to the actual features and availability of underlying goods. Gharar (especially gharar fahish) may eventually lead to dispute (munaza’ah) between the parties to the sale contract.

It is also known as bay’ al-murawadhah.