A shop may quote 1,000 cash or 1,200 payable after two months as alternative proposals. A single price and a single payment schedule must be settled when the contract is concluded.
A valid fixed deferred price is not, merely for being higher, the same as imposing an additional interest charge later for delay. Leaving the price undecided at conclusion is not acceptable.
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Kitab al-Buyu: Offer, Acceptance, Binding Sales and Price Clarity
A shop may quote 1,000 cash or 1,200 payable after two months as alternative proposals. A single price and a single payment schedule must be settled when the contract is concluded.
A valid fixed deferred price is not, merely for being higher, the same as imposing an additional interest charge later for delay. Leaving the price undecided at conclusion is not acceptable.