The migration of Shiite scholars from lands such as Jabal Amel, Bahrain, Iraq and Yemen to Iran, and their role in promoting Shiism among Iranians is one of the topics that has been considered and welcomed by researchers in recent decades.
Although some scholars have questioned the importance and extent of this influence, it must be said that most of them have considered the role of immigration in this very important, influential and decisive religious change and have written several books, treatises and articles on this subject.
But there seem to be two shortcomings in such studies: first, it can be said that all books, treatises, and articles that have dealt with the subject of immigrant scholars and their impact on Iranian Shiism have examined the migration of Jabal Ameli scholars, and we have no independent work. It has examined other currents of migration, including the migration of Bahraini scholars. Another thing is that from the study of the works that have been written in the mentioned fields, it is clear that these authors consider the phenomenon of the migration of scholars and its influence to be limited to the Safavid period. Meanwhile, the influential flow of ulema migration in the post-Safavid period has continued. This study raises the question of what role Bahraini scholars have played in the spread of Shiism among the Iranian people? It intends to study this issue in a descriptive-analytical manner in the mentioned time frame. The findings show that Bahraini scholars are present in Iran, through the prosperity of religious schools, teaching and training students, writing books and treatises on religious principles, holding Friday and congregational prayers and other cultural and propaganda activities, play an important role in Shiism has spread in Iran, especially in the south.