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Hadith

How do Muslims know whether a saying attributed to the Prophet ﷺ is authentic? These articles explain the science behind that question: how chains of narration are examined, what makes Sahih al-Bukhari and Sahih Muslim distinctive, how the grades of sahih, hasan and daʿif are assigned, and whether a weak hadith can be used at all. They are written so that a reader with no background can follow the method and then check the hadith references used across this site. For the broader question of why Muslims follow the Sunnah in the first place, see the Sunnah and Hadith collection.

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