Abstract

The great disputants within the Islamic tradition, the Mutakallimūn, laid down the basis for rational discussion of causality by affirming the right of reason to engage in independent research. This affirmation could not be absolute; it took the form of a division of the spheres of competence belonging, respectively, to reason and Law. Reason was declared to be the judge in ontological and epistemological questions, whereas the sphere of ethics and legislation were left subject to religious Law. Certainly, this division should not be understood too rigidly. The Mutakallimūn often remained loyal to the Law and did not permit reason to execute its rights to the full even when disputing ontological problems. On the other hand, in the sphere of legislation they asserted the rights of reason to define new norms, not established in Revelation, on the basis of rational analysis of revealed Law, thus defying the Zāhiriyya, “people of the manifest,” who denied the legitimacy of rational procedures for determining new norms of law.