As Salamo alaikum. I have lot of old coins of 1, 2 and 5 rupees.There is a process by which I can exchange these old conins. By exchanging these old coins,I get more money than the original value.For Example,if I give an old 2 rupee coin,I get 4 rupees or even more in return.So,is the extra money which I get while exchanging halal for me or not.
Ref. No. 37 / 1051
In the name of Allah the most Gracious the most Merciful
The answer to your question is follows:
Exchanging old coins and getting more money than the original value in return is unlawful.
And Allah knows best
Darul Uloom Waqf Deoband
This answer was collected from the official website of Darul Uloom Deoband Waqf. The institution is based in India and the answers are provided in accordance to the Hanafi Fiqh.