From the very beginning of human creation, discussion has been one of the most effective ways of expressing ideas. This development of ideas and ideas continued until the time of Imam Reza (AS) due to the political and cultural conditions and the emergence of different sects and religions. Circle species added. With these descriptions, according to Islamic sources data, we seek to answer the question of how the Imam Reza (as) managed to rationalize rationality in his debate with regard to the reasons for the creation of a cultural open space by the caliph Abbas. Does he have the right idea? This research is a descriptive-analytical one that seeks to answer this question. The results of the research indicate that due to the monam's valorization of the masters of religions and the establishment of a movement of translation and empowerment of rational groups, there was a good opportunity for Imam Reza (AS) to rely on his Laden science with strategic attributes. The rationality of rationality is well-persuaded by those opposed to it, and it forces them to accept the truth. In other words, he was able to rationally convey the pure teachings of Islam to the world through rational explanations. continued