Prophet's Knowledge and Certainty about the Rightfulness of Revelation

One of the important issues related to revelation and sublime divine sciences is the study of prophet's knowledge and certainty about the rightfulness of revelation. Different analyses have been proposed in this regard. Some believe that prophet's knowledge and certainty in being inspired by revelation are obtained through immediate knowledge which is infallible. Others hold that such knowledge and certainty are originated from Preserved Divine Tablet, based on which prophet connects to the angel through his heavenly spirit and receives divine sciences. Still others hold that prophet's knowledge of rightfulness of revelation is obtained through divine miracle. Another group believes in the existence of such knowledge and certainty by referring to prophet's pure intellectual incorporeality, inner and external Satan's inaccessibility to the state of intellectual incorporeality, and observing the reality of revelation by prophet. However, the final answer can be proposed as such that revelation is a God-given non- acquired phenomenon, so it cannot be obtained through conventional intellectual and intuitive ways. On the other hand, God's aim of revelation and sending prophets is leading humanity toward eternal felicity, salvation, and perfection, which is necessitated by divine wisdom. To this end, the recipients of revelations need to be infallible in receiving it in order to be able to deliver divine message correctly and perform their very important missionary duty infallibly after being inspired, otherwise, the purpose be will put aside, and revelation and sending prophets will be null and meaningless.