On Hadith Authentication

How do hadith scholars grade ahadith? Do they all share the same criteria or are there different views? Have they restricted their efforts to scrutiny of the chain of narration (isnad), or did they take the content (matn) into consideration too? What should I do if I am troubled by the content of a particular hadith?


There is general agreement amongst hadith scholars on the criteria for hadith authentication. Some criteria relate to the transmission (isnad), and others to the content (matn).

Transmission Criteria

There are five principal conditions which must be satisfied for the isnad. Lack of any of these conditions generally implies weakness in the narration. (However, weakness does not necessarily imply uselessness or total rejection of the narration. There are different grades of weak narration. As in a court of law, even a dubious witness’ testimony, though not totally credible, might still cast some light on matters.) Read more