testing and examination; The reason for the absence of Imam Zaman (AS) or its effect and result?

In the collection of Imamiyyah traditions, numerous traditions refer to the issue of why the absence of Imam Zaman (a.s.). Some of these hadiths refer to the issue of divine testing. By examining the writings of theologians and hadith scholars of Imamia, we will find that their encounter with these traditions was not the same; Some, like Nomani, openly spoke about the cause of the exam, some, like Sheikh Tusi, rejected the cause of the exam and considered the exam to be the effect and benefit of occultation, some, like the late Kalini and Sadouq, did not say anything explicitly and did not quote these hadiths. In this article, after examining the words related to the title of test and exam, we quoted seven more important narrations and examined the evidence and meaning of each of them. In the end, it became clear that some narrations emphasize the causality of "testing and testing" and some others express the effects of occultation and the characteristics of occultation. No, why the absence? In any case, based on this research, one of the causes of absenteeism can be listed as "testing and testing", which can be explained in a rational analysis along with other causes of absenteeism