Emigration of Imam Riḍā (as) to Iran and its Impact on the Migration of Alawites in the Abbasid Period

The migration of Arabs to Iran, which began at the beginning of the conquests, continued during the Umayyad and Abbasid periods. The difference between the Arab migration in the Abbasid period and the previous periods was that the immigrants of this period were mostly Alawites. These migrations started from the beginning of the Abbasid period and intensified with the presence of Imam Riḍā (as) in Iran. The subject of the present study is the effect of the emigration and guardianship of Imam Riḍā (as) on the Alawite migrations in the Abbasid period. The question of this research is what effect did the migration of Imam Riḍā (as) have on the migration of Alawites in the Abbasid period? Information from various sources indicates the great impact of the emigration of Imam Riḍā (as) on the migration of Alawites with different Shiite tendencies. The migration of the Alawites to Iran took place in two periods and in two forms, that is, simultaneously with the migration of Imam Riḍā (as) and after the migration. Therefore, the emigration and coronation of Imam Riḍā (as) can be considered as an important factor in the formation, continuation and expansion of Alawite migration to different parts of Iran, and even it played a role in the formation of the Alawite government of Tabarestan. The research method in this research is descriptive-analytical, and the method of collecting information is library and using the information of various historical sources, rijals, genealogies, sects and new sources and researches. Also, in this research, in addition to referring to the books belonging to the Imami Shiites, the books of the Zaydi sect were also cited.