Four distinct questions can arise concerning a legal duty: What is its prescribed occasion? What operative attribute grounds it? Which necessary condition must be satisfied? What intervening impediment prevents or ends its effect?
ConceptQuestionCauseWhat is the prescribed legal occasion?Operative reasonWhat attribute grounds the ruling?ConditionWhat requirement remains to be met?ImpedimentAt what stage is effect blocked?
For instance, the threshold of wealth, passage of time, and status of the property in zakat cannot all be collapsed into the undifferentiated word “cause.” An accurate legal analysis distinguishes their respective functions.