The Risāla of al-Shāfiʿī (d. 204/820), the earliest preserved work of Islamic legal theory, has been understood in previous scholarship as either the elaboration of a hierarchy of sources of law (Qurʾān, Sunna, consensus, and analogical reasoning) or an extended defense of the Sunna. Through a careful rereading of this celebrated text, this book offers a comprehensive reinterpretation of the Risāla, in which Shāfiʿī formulated an all-encompassing hermeneutic that portrays the law as a tightly interlocking structure organized around defined interactions of the Qurʾān and the Sunna. Topics covered include Shāfiʿī’s creative account of the law’s architectonics, hermeneutical techniques, legal epistemology, relationship to kalām, and the role of consensus (ijmāʿ).