This book is intended to explain the causes of juristic divergence in Islam and it consists of six chapters. This book also has some Arabic equivalents of technical terms. The book is considered as one of the most effective works in discussing the roots of the divergence related to the field. As the phenomenon of divergence can never be expected to discontinue, the author of the book made a conclusion to the effect that what is more important is the knowledge pertaining to the etiquette of dealing with the adversary, and the principles of conduct when divergence occurs.