Is it permissible to sell a deferred commodity at a price lower than the market price, given the seller's need for money, and is this sale considered a Salam sale despite the presence of ghubn (gross deception/disadvantage) in the price?

The aforementioned sale is a forward sale (بيع سلم). One of its objectives is a reduction in price, which is the buyer's aim in expediting payment in exchange for a lower-priced commodity and delayed possession. The forward sale is legislated due to people's needs, as farmers and merchants require funds to complete their work. Thus, it is permissible for them to engage in forward sales to benefit themselves, and the buyer benefits from the reduced price. The seller benefits from the expedited payment, and the buyer benefits from the lower cost of the commodity.