"Argumentation" in language, relying on the pragmatic feature of discourse known as integrated pragmatics, elucidates methods of influencing the recipient in rational persuasion by considering linguistic and contextual characteristics based on constructive dialogue. Grounded in Ducrot's perspective, this theory views the fundamental feature of language in its communicative function and argumentative dimension, where discourse, through linguistic tools and the arrangement of reasons based on their effectiveness, seeks to bring about changes in the recipient's perspective. Drawing on the theory of "speech acts," this approach facilitates the examination of the argumentation process in discourse through linguistic structures, relationships, factors, and argumentative ladders. The present study, employing a descriptive-analytical method, analyzes Letter 27 of Nahj al-Balagha. The findings indicate that Imam Ali (peace be upon him), by considering the linguistic and situational context as well as the audience's presuppositions, has meticulously structured arguments in a step-by-step manner within the argumentative ladder of linguistic constructs. Accordingly, various logical rules (negation and contradiction) and argumentative relationships and factors (conjunctions and restrictive particles) have been employed to persuade the audience, tailored to the discourse context and the purpose of persuasion. Rhetorical devices such as intertextuality, repetition, antithesis, and metaphor also serve the argumentative function of the discourse.