The primary sources of Islamic law are the Holy Book (The Quran), The Sunnah (the traditions or known practices of the Prophet Muhammad ), Ijma' (Consensus), and Qiyas (Analogy).

The giving and receiving of interest (riba), extremely risky investments, gambling, prostitution, and alcohol consumption are prohibited. The belief that trade is to be conducted in a faithful and beneficial manner and the principle of risk-sharing form the basis of Islamic business.

in the Islamic context Shariah refers to the laws and commandments and way of life prescribed by Allah to mankind. Shariah refers to commands, prohibitions, guidance, and principles that God has addressed to mankind pertaining to their conduct in this world and salvation in the next.

Sharia stands for Islamic or sacred law. It is an Arabic word meaning “the way” or “the path to water.” For centuries, Muslim scholars have given a broad definition of Sharia reflecting the diversity of interpretations on how Muslims have attempted to best understand and practice their faith.