What is the ruling on purchasing a commodity from one country and then sending it to another for a relative to trade with it for a percentage, whether the selling price is higher or lower than its price in the other country? And does the ruling change if the selling price is double the purchase price? Is it permissible to guarantee a buyer's purchase based on descriptions without paying money, while not yet possessing the commodity? And what are the necessary conditions for this action to be permissible?

It is permissible to buy an inexpensive commodity and sell it for a large profit in another country. It is also permissible to appoint someone to trade with it for a known wage. There is no limit to profit as long as there is mutual consent between the seller and the buyer, as Allah the Almighty says: "unless it be a trade by mutual consent among you." The Sunnah (definition) also indicates the permissibility of a hundred percent profit.

As for selling an absent commodity over the phone, if the commodity is specified and owned, the majority of jurists permit it, provided the buyer has the option of inspection upon seeing it. This is the preponderant opinion.

However, selling something that one does not initially own is not permissible in Sharia (definition), due to the Prophet's (peace be upon him) prohibition of selling what you do not possess. In this case, Salam (forward contract) selling is permissible under its conditions, or brokerage, where one agrees with the customer to search for the commodity for a known fee.