Meaning of Jihad is "to exert in the Path of God :” "Islamic theology, therefore, tells the true believer that his highest duly is to make exertion (jihad) in the path of God by waging war against infidel lands (dar-ul-harb) till they become a part of the realm of Islam (dar-ul-Islam). After conquest, the entire infidel population becomes theoretically reduced to the status of slaves of the conquering army (Muslims). The men taken with arms are to be slain or sold into slavery and their wives and children induced to servitude. As for the non-combatants among the vanquished, they are not massacred out right, as the Canon lawyer Shafi declared to the Quranic injunction, it is only to give them a respite till they are so wisely guided as to accept the true faith.