In the question mentioned above, as per the Shariah it shall not be lawful to take 25% profit by giving 250000 Dirham. According to Shariah, it is not lawful to earn money by money, until the money is not invested in something and one’s brain is not utilized and hard work is not done for the same, as it is prevalent in business. It is obvious that sometimes in business one avails less profit and sometime more profit while sometime there is no profit at all and the dealing goes equal and sometime it incurs loss. Hence it is earning money by money to take fixed profit by giving money which is open interest and definitely haram and unlawful. Muslim should avoid such earnings.
Allah (Subhana Wa Ta’ala) knows Best
Darul Uloom Deoband