Selling money on the black market

Q 3: What do you think, Your Eminence, of receiving a salary in a currency other than that of one's country and being forced to sell it in the black market? As the banks buy it for a very low price, compared to the market, and the person who inquires about this does not have banks in his country which exchange foreign currencies.

A: It is permissible to sell them in the black market, provided that they are exchanged at the time of the contract, whether there is a bank in his country or not.May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.