Is the exchange of foreign currency (Euro) for local currency (Moroccan Dirham) and vice versa, with one being paid and the other taken, considered Riba (usury/interest)?

For the validity of currency exchange (such as dirham for euro and vice versa), immediate possession in the contract session is required. Otherwise, it constitutes riba al-nasia (usury of delay), which is forbidden by scholarly consensus. Jurists have unanimously agreed on the necessity of immediate possession in the session when exchanging one currency for another, or the same currency for itself; otherwise, the contract is nullified. They base this on the hadith: "Do not sell gold for gold, nor silver for silver, unless it is equal for equal, and do not exchange some of it for more than others, and do not sell paper for paper unless it is equal for equal, and do not exchange some of it for more than others, and do not sell from it that which is absent for that which is present." The separation that prevents the validity of the exchange is the physical departure of the two contracting parties from their session.