The concept of unlawful gain and legitimate profit in Islamic law (Ph.D. Thesis)

This thesis deals with the theory on which the concept of unlawful gain and legitimate profit in Islamic law was based, citing the views of (primarily traditional) jurists and Muslim writers and their interpretation of the Qur'anic verses and the meaning of the Prophet's hadith. Early Muslim jurists examining the early sources (Qur'an, hadith and fiqh) unanimously concluded that unlawful gain is prohibited. The Islamic doctrine of the prohibition of unlawful gain, such as riba, gharar and exploitation, has acquired great importance because different types of unearned income or surplus value form the basis for inequitable distribution of wealth. The motivation behind this study of legitimate profit in Islamic law is to present a clear relationship between capital owner and investors in the field of profit-sharing and partnership.