Hadith in Shiism
The Shi’ites reject all Prophetic Traditions which were not related by members of Ahlul-Bait, or their descendants.
The only exception to this rule is their acceptance of a few Hadiths narrated by those who sided with ‘Ali (may Allah be pleased with him) in his political wars (as they claim).
They do not attend to the authenticity and soundness of the chain of narrators, nor do they approach the study of the Prophetic Traditions with a scientific, critical attitude.
Their narrations often appear in a form like that of the following example: “It has been reported regarding Muhammad bin Isma’eel by way of some of our friends through a man who transmitted it from him [‘Ali] that he said…”
Their books are filled with hundreds of thousands of traditions whose authenticity cannot be confirmed.
They have built their religion specifically upon these spurious texts while outright rejecting over three quarters of the authentic Prophetic Traditions.