Sultan Sahak (also Sultan Ishaq Barzanjî; Kurdish: sولتان سهاک; fl. late 14th to early 15th century) was a Kurdish religious leader who reformed and shaped the beliefs of Yarsanism — one of the indigenous syncretic faiths of the Kurdish world. He is revered by Yarsan followers as the fourth of seven divine incarnations of God and as the founder of the faith in its present form. His teachings are preserved in the Kalâm-e Saranjâm, the central scripture of Yarsanism, written in the Gorani dialect of Kurdish.

Eye-level view of a historical mosque in Barzinjah

Table of Contents

Life and Origins

The Uncertain Dates

His Teachings

The Kalâm-e Saranjâm

The Seven Divine Incarnations

Legacy and Contemporary Significance

Frequently Asked Questions

References

Life and Origins

Sultan Sahak was born in Barzinjah, near what is today Sulaymaniyah in the Kurdistan Region of Iraq, into a family of Kurdish sheikhs whose line had moved to the region from Hamadan. His father was Shaykh Isa, a Sufi leader; his mother, Khatun Dayerah, was the daughter of Hasan Beg of the Jaff tribe — a lineage that placed him within the interlocking networks of Kurdish religious and tribal authority that characterised the late medieval period.

According to Yarsan tradition, his birth was miraculous: he is said to have appeared in the form of a divine falcon. This mythology encodes his status within the faith as no ordinary human being but a vessel of divine manifestation. He established his primary community in the Perdiwar region (Hawraman), near the Sirwan River — an area whose name still appears in the oldest stratum of Yarsan poetry.

The Uncertain Dates

The dating of Sultan Sahak’s life is genuinely uncertain. Scholarly sources generally place him in the late fourteenth to early fifteenth century, a period that corresponds with the aftermath of Timur’s campaigns through the region. Yarsan tradition itself offers varying accounts of his era, and the Kalâm-e Saranjâm does not provide the kind of datable historical reference points that would allow precision. The widely accepted scholarly position is that he was active around the period of Timur’s rise, placing him approximately between the 1370s and 1430s.

His Teachings

Sultan Sahak’s philosophy centres on several core principles that distinguish Yarsanism from both orthodox Islam and from other Kurdish religious traditions. The most fundamental is the belief in the successive divine manifestation (mazhariyyat) — the idea that the Divine Essence takes human form in a series of incarnations, of which Sultan Sahak is the fourth. Connected to this is the Yarsan doctrine of transmigration of the soul, called dunaduni in Kurdish, through a cycle of 1,001 incarnations toward spiritual perfection.

Community worship is central to Yarsan practice as Sultan Sahak established it. Followers come together in jam ceremonies, involving communal prayer, the recitation of sacred poetry (kalam), shared meals, and music — particularly the sacred tenbur lute. This emphasis on communal spiritual life remains one of Yarsanism’s defining characteristics today.

The Kalâm-e Saranjâm

The Kalâm-e Saranjâm — the “Discourse of Conclusion” or “Word of the Final End” — is the central scripture of Yarsanism. Written in the Gorani dialect of Kurdish, it contains texts attributed to Sultan Sahak and to his spiritual companions, including Pir Musi, who is traditionally credited with committing the oral tradition to writing. The oldest layer of the text, the Perdiwari poems, is named after Perdiwar, Sultan Sahak’s home region.

The Kalâm-e Saranjâm was not authored by a single hand in the way that a modern text might be; it grew as an accumulation of sacred poetry from the foundational period of the faith and from the later “Thirty-Six Poets” who expanded the tradition. Its use of Gorani as a sacred language has preserved that dialect in liturgical form even as it has been largely supplanted in everyday life by Sorani and Kurmanji.

The Seven Divine Incarnations

Within Yarsan theology, the Divine Essence has manifested in human form seven times across history. Sultan Sahak is the fourth and most recent completed manifestation, representing the culminating cycle of divine revelation before the final reckoning. His seven-figure structure of divine incarnation has been compared by scholars to similar structures in Yazidism (the seven beings headed by Tawusî Melek) and Ismailism (the seven imams), reflecting the shared esoteric vocabulary of the Kurdish religious world.

Legacy and Contemporary Significance

Yarsanism today has an estimated following of 500,000 to one million people in Iran, with additional communities in Iraqi Kurdistan and the Kurdish diaspora. All adherents are Kurdish, making it one of the few surviving ethnic religions in the world. Sultan Sahak’s tomb at Perdiwar remains a major site of pilgrimage.

His legacy extends beyond the strictly religious. In a region where Kurdish religious and cultural identity has faced sustained pressure, Yarsanism has functioned as a carrier of language (Gorani), oral poetry, and community solidarity. Sultan Sahak stands as a figure not only of Yarsan spiritual history but of Kurdish cultural history more broadly.

Frequently Asked Questions

When did Sultan Sahak live?

His dates are uncertain. Scholarly sources generally place him in the late fourteenth to early fifteenth century, during or shortly after the period of Timur’s campaigns in the region. Yarsan tradition offers various accounts of his era, but modern academic consensus supports an approximate date range of the 1370s to the 1430s.

What is the Kalâm-e Saranjâm?

It is the central scripture of Yarsanism — a collection of sacred poetry in the Gorani dialect of Kurdish, attributed to Sultan Sahak and his companions and later expanded by succeeding generations. The “Discourse of Conclusion” is the primary theological and liturgical text of the faith.

Is Yarsanism widely practised today?

Yarsanism has an estimated following of 500,000 to one million people in Iran, with additional communities in Iraqi Kurdistan and the diaspora. All practitioners are Kurdish. It remains a living tradition, though one that has faced social and political pressure in both Iran and Iraq.

References

M.R. Hamzeh’ee, The Yaresan: A Sociological, Historical and Religio-Historical Study of a Kurdish Community, Berlin: Klaus Schwarz, 1990.

Philip Kreyenbroek, Yezidism: Its Background, Observances and Textual Tradition, Lewiston: Edwin Mellen Press, 1995 — provides comparative context for Yarsan theology.

Encyclopædia Iranica, entry on “Ahl-e Haqq.”

Wikipedia, “Sultan Sahak,” citing Vali (2008) and Hamzeh’ee (1990).