Abstract
The authors of the article studied a copy of the hagiographical Tadhkira-yi Khwāja Qub ad-dīn Irāqī housed at the Institute of Oriental Manuscripts, RAS, St.Petersburg. On the basis of the data from this source, the relationships between the Sufis of Naqshbandiya in Central Asia and some aspects of the tradition of knowledge inheritance are considered. Emphasis is placed on the Qub al-alām degree of the Sufis, which is revealed in the Tadhkira. The value of this copy also lies in the fact that it contains information on the tradition of Uvaysiya, popular in Eastern Turkestan.