This study aims to observe the nature of the ancient Arabic narrative, and on the basis of the narrative analytical method, by studying the feature of the encyclopedia that normalizes the ancient Arabic prose texts in a striking way, indicating the richness and abundance of knowledge, and the extension and bifurcation of the knowledge in the culture of the Arab writer. We have followed this feature in the book “Al-Imtāʿ wa al-Mu’ānasa” by Abu Hayyan al-Tawhidi as a discourse based on the encyclopedic narrative, to know its manifestations, forms and functions. Al-Tawhidi's bet on achieving the goal of sitting with the minister is to be entertaining and enlightening, which justifies the speaker’s negotiation about what will prevent him from achieving this goal, and his request to overcome the obstacles that would disturb him during the performance of his mission. We understand from this the desire of Al-Tawhidi to harness all his encyclopedic capabilities and cultural qualifications to achieve the goal of "conversation and socialization", and the appearance of an encyclopedic writer is only a form of influence, as the speaker's goal is to provoke feelings of approval and satisfaction with Minister Ibn Saadan. The encyclopedic picture of the speaker, although it is a feature that characterizes the prose of the monotheism in its entirety, in the context of the gambling it was linked to the function of deliberative conduct, as the speaker intends to perform his educational and entertaining functions that were entrusted to him, so that he attains the approval of the Minister Ibn Saadan, and achieves favor in his council, and one of the documents brings us closer to this feature.