How is constructive possession of gold and silver bars realized when selling them for cash?

When purchasing gold with cash, it is a condition that possession occurs in the same sitting, either hand-to-hand or by depositing the gold into the buyer's account immediately upon payment of the cash. This is considered constructive possession, allowing the buyer to take the gold at any moment.

If the gold is not deposited into the account until after a period of time, or if the buyer is unable to dispose of it until after a period of time, then the transaction is considered forbidden riba al-nasiah (usury of delay).

This is based on the saying of the Prophet, peace and blessings be upon him: "Gold for gold, silver for silver, wheat for wheat, barley for barley, dates for dates, salt for salt – like for like, equal for equal, hand to hand. If these categories differ, then sell as you wish, provided it is hand to hand."

Monetary currencies take the rulings of gold and silver. Constructive possession is considered fulfilled when purchasing gold with an instant debit card or with a certified check, if the check is a bank check or certified, in accordance with the resolutions of the International Islamic Fiqh Academy.