In this foundational work, originally published around 1947, Mohammed Abdullah Draz presents a compelling intellectual and linguistic argument for the divine origin of the Quran. He meticulously analyzes its unique structure, internal consistency, and unparalleled eloquence to demonstrate its inimitability (I'jaz). Draz masterfully refutes claims that the Quran could be of human authorship, establishing it as a divine revelation. This book is an essential read for anyone seeking a deep, logical understanding of the Quran's miraculous nature, inviting both Muslims and non-Muslims to explore its profound message and timeless wisdom.