Recognizing the concept of "mixing" in the ancient books of rijal of Imamiya and investigating its effect on the validation of narrators

One of the most used expressions in the ancient books of Rejal science is the expression of "mixing" and its other derivatives. The meaning of this word was clear to the ancients; For this reason, they have not given an explanation about it, but with the passing of time and the disappearance of evidence, this expression became ambiguous; In such a way that later scholars differed in its definition. Some have considered it to mean the corruption of belief, and others have considered it to mean the combination of authentic narrations and non authentic narrations. According to the important role of this expression in the validation of narrators and the ambiguities in its explanation, it seems necessary to provide a comprehensive research in order to resolve the existing ambiguities. In this article, which was carried out with the aim of identifying the concept of mixing in the words of the ancients of Islamic scholars, the various uses of this word and its other derivatives in the books of the ancients were analyzed and investigated by descriptive- analytical method and with the help of library data. Mixing means narrating authentic and non-authentic narrations by a narrator, which in most cases is rooted in his corruption of his believes.