The hadiths concerning the cause of revelation are related from one aspect to Quran and hadith and from another to history. As far as the verses declaring religious commands which have causes of revelation are concerned, the jurisprudential aspect is added to the above said aspects. The Imamia jurists' attitude to historical evidences in general and to hadiths concerning causes of revelation specifically, affects how verses are inferred from the jurisprudential aspect through the understanding obtained from these hadiths. In this paper, in order to explain the Imamia jurists' attitude to historical evidences, the function of hadiths concerning causes of revelation in Imamia jurists' works is investigated. For this purpose, the authors have borne in mind the difference of jurisprudential schools and attempted, in this way, to explain the diversity of ways Imamia jurists have treated hadiths concerning causes of revelation. The induction obtained from this investigation shows that the hadiths narrated from Imams, provided that the validity of their attribution is proved, have been cited among the main proofs of a jurisprudential ruling. On the other hand, the causes of revelation quoted by Sunnis have been mostly used as endorsing the jurisprudential inferences by Shiite. The hadiths concerning causes of revelation have a variety of functions in the Imamia jurists' works such as determining the conceptual components of words and inference jurisprudential rulings from the verse. However, providing the ground for jurisprudential inference from the verses apparently non-jurisprudential is one of the most important functions of these hadiths; since, without taking these hadiths into consideration, the verse has not directly referred to jurisprudential issues