Is it permissible to pay off a loan from a national bank with its increased interest before the first installment is deducted from the salary?

There is no objection to expediting the repayment of a bank loan in a single lump sum, even if the bank does not waive all or part of the profits. There is also no objection if the bank waives some of the profits without a condition in exchange for expedited payment. However, scholars have differed regarding the ruling on making such a condition from either the creditor or the debtor.