Industry WIKI

Gharar (Arabic: غرر) literally means uncertainty, hazard, chance or risk. It is a negative element in mu'amalat fiqh (transactional Islamic jurisprudence), like riba (usury) and maisir (gambling).

Riba (Arabic: ربا ,الربا، الربٰوة, ribā or al-ribā, IPA: [ˈrɪbæː]) is an Arabic word used in Islamic law and roughly translated as "usury": unjust, exploitative gains made in trade or business (especially banking). Riba is mentioned and condemned in several different verses in the Qur'an (3:130, 4:161, 30:39, and the commonly referenced 2:275-2:280). It is also mentioned in many hadith (