Answer:
(Fatwa: 434/434/M=1434)
If your father took 5000 as loan then he will have to pay only the same amount. It is not correct to demand more amount as per the current value, it shall become interest. Yes, if there is no condition of excess and your father gives more than the loan amount, then it is alright.
Allah (Subhana Wa Ta’ala) knows Best
Darul Ifta,
Darul Uloom Deoband
