Article Title: A Comparative Study of the Views of Ash'areh and Mulla Sadra on the Mode of Divine and Non-Divine Agency According to the Rule: "There is no Affective on the Existence Except Allah"

In explaining the mode of divine and non-divine activity, the rule "There is no affective on the existence except Allah" is accepted and emphasized by Ash'ara and Mulla Sadra. However, each of them has presented a different interpretation of this rule. In this article, with a descriptive-analytical-critical method, with a comparative study between these two views, we seek to understand the answer to the question that what are the explanations, foundations and essentials of the two views of divine and non-divine agency based on the aforementioned rule? Based on this rule, the Ash'ari have denied any causality, influence, and influence among the possibilities and attribute all actions exclusively and directly to God Almighty. But Mulla Sadra, based on his philosophical foundations in the wisdom of the Supreme, while proving God's close efficacy for all actions, also accepts a role for other possibilities in the actions and proves a type of influence among the contingent beings. Many different explanations can be given from Mulla Sadra's point of view. By examining both views, it became clear that none of them are free of problems. Of course, Mulla Sadra's point of view, with the explanation given by Mulla Ali Modares, is largely free of problems.