Philosophy is the basic theory of human and social sciences, and transcendental wisdom, as a philosophical system, has the capacity to realize this basic structure. Humanities are responsible for explaining human voluntary actions, and from Allameh Tabatabai's point of view, human voluntary actions are a function of his credit system, therefore paying attention to credit theory has a decisive contribution in the study of human sciences, and considering that the systematic design of credit theory by him in Transcendental wisdom has taken place, the issue of this article is how transcendental wisdom is related to human sciences through the theory of validity. This article tries to show that the said theory is a link between transcendental wisdom and human sciences, according to the epistemological and anthropological foundations of Sadra'i philosophy.