In the Shiite culture, the Imam has unique virtues, attributes, and his knowledge is beyond the knowledge of ordinery people, because his knowledge has divine origins. In his book titled "Mashareq al-Anwar al-Yaghin fi Asrar al-Amir al-Mu'minin”, Hafiz Rajab Bursi, one of the scholars of the eighth century A.H., has mentioned more than seventy narrations that testifies to the divine knowledge of the Imams (A.S.). He belivies that these narrations are proof of the divine origins of Imam’s knowledge. He has tried to explain the bases of this knowledge. Since Bursi's views are somewhat different from those of other Shiite thinkers, we dicided to present his ideas in the form of an article. Our findings testify that Bursi has inferred the sources of the knowledge of the infallible Imam and the various aspects of his knowledge and awareness. His belief is that Imam’s knowledge is not limited to shariah law and incldes different types of knowledge such as: knowledge of the great names of God, knowledge of society, knowledge of Jafr, knowledge of the events of "Makan" and "Mayakon", knowledge of disasters, and knowledge of all languages, even the language of animals, knowledge of the holy scriptures of previous prophets, knowledge to the world of purgatory and resurrection and the state of heaven and hell. Although, with aim of better explaining the issues raised in this article, we have used various sources, the focus has been on "Mashareq al-Anwar al-Yaqin fi Asrar al-Amir al-Mu'minin". The mthod adopted in the pesnet study is an impirical descriptive-analytical one.