The results of the research indicate that the extraction of the thematic intertextual relationship between Nahj al-Balaghah and the verse of Ihtada plays a very important role in removing the ambiguity of the verse regarding determining the instance of "the most rightful in guidance". Based on the findings, as Amir al-Mu'minin Ali (AS) has been specifically introduced in the authentic commentary and narration books as the example of the verse of Ihtada, through the analysis of the intertextual interaction of Nahj al-Balagheh propositions with the verse of guidance, the process of correct understanding and interpretation of this verse is facilitated.