"A non-Muslim, therefore, cannot be a citizen of the State; he is a member of a depressed class; his status is a modified form of slavery. He lives under a contract (zimma) with the State: for the life and property that are grudgingly spared to him by the Commander of the Faithful he must undergo political and social disabilities, and pay a commutation-money (jaziya). In short, his continued existence in the State after the conquest of his country by the Muslims is conditional upon his person and property being made subservient to the cause of Islam."