What is the ruling on determining the value of a debt in Saudi Riyals after three years of borrowing it in Egyptian Pounds, such that the new debt is considered a loan in Riyals at today's exchange rate, with the original amount remaining without increase?

It is not permissible to sell a debt to the debtor himself for a commodity described in the ledger that has not been taken possession of in the same session, because it entails two prohibitions: 1. Selling debt for debt: This is prohibited by consensus. 2. Lack of immediate possession in the session: Furthermore, since both alternatives are usurious, exchanging a debt for another currency is considered a currency exchange (sarf) which requires immediate possession before parting ways, as stated in the Hadith (definition) of Ibn Umar, may Allah be pleased with both of them: "There is no harm in taking it at its price on that day, as long as you do not part ways while there is still something between you."

If the debtor is procrastinating and able to pay, it is permissible to refer him to the judiciary. However, if he is in hardship, it is obligatory to grant him respite, based on the words of Allah Almighty: "And if there is one in hardship, then grant him respite until a time of ease."