Reliability or unreliability of the traditions transmitted by the proxies of the Infallibles (a.s)

Some of the traditions were narrated by individuals who had permission from the Infallibles in certain fields to act as proxy for them. Yet this proxy neither entails the approval of their trustworthiness by the Infallibles nor the reliability of their narrations. On the other hand, the things that can be considered as evidences for unreliability of these traditions are questionable. By contemplating the different expressions stated by the Imams about these hadith transmitters and considering their status and position it becomes proved, however, that the narrations of a group of them are reliable, while those of the others are not so.