This document discusses the epistemology and methodology of Islamic economics. It begins by defining epistemology as the theory of knowledge that examines the origin, structure, and validity of scientific knowledge. It then discusses the relationship between epistemology and empirical science, noting that epistemology provides a philosophical framework for the scientific method while empirical science involves applying that method to discover realities. The document also introduces naturalistic epistemology, which emphasizes applying methods and theories from empirical sciences to the study of knowledge. It concludes by explaining how epistemology impacts empirical science by encouraging critical thinking, reflecting on assumptions and methods, and providing a logical foundation for the scientific method.