By the end of this paper the reader will realize that the spread of the Islamic religion in the Far East and in the country known as the country beyond the river in particular was in the year (33 A.H. / 653 A.D.). This is in terms of military, but in reality the people of this country had converted to Islam before this date and according to the confession of solidarity by the people of Tajikistan it seems that they converted to Islam before the conquest of Maro which was in the year (32A.H. / 652A.D.) who was passing through Boukharistan, Bokhara, Bekind, Samarqand, Khajenda, Termith, Khitle, Akron, Shouman, Saghanian, Kashan, Arousht, Farghana and Kashgher.