Before you can benefit from the hadith literature, you need to understand how it works. The scholars of Islam developed an extraordinarily precise science for evaluating hadith — assessing the reliability of narrators, identifying defects in chains of transmission, and classifying narrations according to their strength. Without knowledge of this science, a Muslim reading hadith cannot distinguish the authentic from the weak, the sound from the fabricated.About This BookHadith Terminology and Classification: A Handbook by Muhammad Saeed Mitwally ar-Rahawan is a concise introduction to this science — covering the vocabulary, definitions, and classification system that hadith scholars developed over more than a thousand years to protect the Sunnah of the Prophet (peace and blessings be upon him).What This Book CoversThe Sciences of Hadith — Mustalah al-HadithThe book introduces the core terminology of hadith classification: what makes a hadith sahih (authentic), hasan (good), da'if (weak), or mawdu' (fabricated); how the chain of narrators (isnad) is evaluated; what constitutes a defect in transmission; and how scholars graded individual narrators for reliability. These terms appear constantly in Islamic books and lectures — knowing what they mean matters for any student of knowledge.How the Scholars Preserved the SunnahThe handbook sets out how Muslim scholars in the early centuries of Islam examined hundreds of thousands of narrations and traced each one back through its chain of transmitters — weighing the character, precision and memory of every person in the chain — to determine which reports could reliably be attributed to the Prophet (peace and blessings be upon him).Practical Reference for StudentsThe handbook format means it can be used both as a linear study text and as a reference to return to when encountering hadith terminology in other books. Clear definitions, examples, and structured presentation make it accessible to students at an early stage of their hadith education.About the AuthorMuhammad Saeed Mitwally ar-Rahawan is a scholar who has contributed to making the sciences of hadith accessible to English-speaking students. Published by International Islamic Publishing House (IIPH).Who This Book Is ForEvery student of Islamic knowledge who wants to understand what terms like sahih, hasan, da'if, mursal, and mawdu' actually mean — and why they matter. Written for anyone beginning a serious study of the hadith sciences, for students who encounter grading terminology in books and lectures and want to understand it, and for any Muslim who wants to know how the Sunnah of the Prophet (peace and blessings be upon him) was preserved and verified.Continue ReadingOnce the terminology is clear, the major collections themselves are the next step — see Summarized Sahih al-Bukhari and Summarized Sahih Muslim. Browse the full hadith collection or our guide to the best hadith books to start with the Sunnah.