Fakhr al-Din al-Razi’s Commentaries on the Prohibition of Riba (Interest) in Mafatih al-Ghayb

There is a riba, interest prohibition in Islamic economy thought. This prohibition has been put in place to prevent problems that may arise in economic and social life. During the Jahiliyyah era, there was a group that obtained their income from interest. They used to get back excessively more money than they lent without considering the conditions of the borrower. Islam has also banned interest among the arrangements it has brought in the economic field. He encouraged lending, and proposed postponement in cases of difficulty in payment. With other regulations and the prohibition of interest, Islam wanted to prevent the accumulation of wealth in certain sections and to reduce the income gap between the rich and the poor. Thus, it is aimed to spread the wealth to every category and to actualise social welfare. In this study, al-Razi’s commentaries on the prohibition of Riba (Interest) in Mafatih al-Ghayb will be summarized