My one of friends doing his coins business. In this he sold his 100 Rs Coins in 115 Rs. Means he takes 15Rs. extra on 100Rs. So, I am also interested in his business and do the same. But as a Muslim to start any new business I need to check whether it is Halal or Haram. Kindly answer the same.
بسم الله الرحمن الرحيم
(Fatwa: 19/14/D=01/1437)
It is unlawful to sell the prevalent coins with rupees with difference in quantity. It is interest about which the Holy Quran and Hadith sternly warn. Hence it is not lawful for any Muslim to deal as per the method mentioned in the question.
بيع فلوس معينة بالتفاضل كبيع الفلس الواحد بعينه بالفلسين الآخرين ….. فقال محمد لا يجوز …… والذي يظهر لهذا العبد الضعيف أن قول محمد أولى بالأخذ في زماننا. (تكمله فتح الملهم 1/588 باب الربا)
Allah knows Best!
Darul Ifta,
Darul Uloom Deoband