The Buyruk is written in the form of an interlocution between Shaykh Safi-ad-din Ardabili, founder of the Safaviyya order, and his son Sadr al-Dīn Mūsā on different religious matters, and particularly on the life and principles of the Sufi order. It also contains poems composed by Shah Ismail I under the pseudonym 'Khatai', which indicates it must have been compiled in the Sixteenth Century at the earliest 
- Martin van Bruinessen (2000). Mullas, Sufis and Heretics: The Role of Religion in Kurdish Society : Collected Articles. Isis Press. p. 3000.
- Matti Moosa, Extremist Shiites: The Ghulat Sects, pp 153 - 55, New York, 1988
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