An Investigation into the Principle of Avoiding More Corruption by Means of Allowing Less Corrupt Behaviour from the Viewpoint of Islamic Jurisprudential schools

The rule of "permission of committing a corrupt action in avoidance of a corrupter one" is among the mostly utilized ones in all fields of Islamic jurisprudence. Although the rule is considered legal by the "Quadruple Reasons" but there has not yet been enough study on it except some sporadic and scant hints throughout Islamic Jurisprudential literature. The rule considers it legal to commit a corrupt action in order to avoid a corrupter one, as an instance of the rule of "Important and the More Important". In this paper, the content, supporting reasons, exceptions and adaptations of the rule are discussed according to the Sunni and Shia valid sources.