Is it obligatory to repay a loan agreed upon in Lebanese Pounds with the same value it was equivalent to in US Dollars at the time of borrowing, or is it obligatory to repay the original amount borrowed in Lebanese Pounds?

The fundamental principle is that a debt should be repaid with the same currency in which it was incurred, as long as that currency still exists. This repayment is not tied to price levels, inflation, or the price of gold, unless there is an exorbitant injustice that clearly wrongs the rightful claimant. In such a case, scholars have differed regarding what is obligatory: is it the equivalent amount or the value?