"The Principles of Hadith Authentication"
—or more literally—
"The Fundamentals of Referencing the Prophetic Hadith"

This book goes through the methodology used to trace, verify, and classify Hadiths (sayings or actions of the Prophet Muhammad) based on their sources and chains of narration

This book discusses the issue of deviating from the four followed Islamic schools of thought (madhhabs). It is divided into two main sections: The first is the complete rejection of these madhhabs in favor of a "no-madhhab" approach under the guise of rejecting taqlid (following a scholar's ruling). The book argues that this approach contradicts Islamic Sharia. The second section deals with opposing the statements of ijtihad (independent legal reasoning) of the scholars of the first three centuries. The book discusses these issues from the perspective of Sharia and its legal evidence