Ruling on the price when its due date and quality are left unspecified

By default, the price is payable on the spot unless the two contracting parties stipulate a term, in which case it is due at that appointed time. If they transact in dinars or dirhams, the price is reckoned according to the currency current in the town where the sale takes place, provided there is only one recognized currency. Should several different coinages be in circulation, with varying degrees of depreciation or appreciation, the sale is invalid until the precise currency is specified. The same ruling applies when dinars of differing value circulate in that locality: the sale is not lawful until the exact type is made clear.

It is unnecessary to state in the contract that the coins must be “good,” for the buyer is, by default, liable to pay sound, full-weight currency that is legal tender at the time. If a dispute arises over the dinars or dirhams—some qualified examiners declaring the coins sound and others deeming them defective—the payee cannot be compelled to accept them if he refuses, until unanimous testimony confirms their soundness.