This article records tradition as it has been passed down and reported. Its sources are not yet part of the atlas's verified catalogue.
Sultan Sahak, also transliterated Soltan Sahak, is venerated in Yarsani tradition as the figure whose teaching opened the current cycle, dowreh, of Yarsani religious history. Scholarship places that event provisionally in the fifteenth century CE and associates it with the village of Perdiwar in the Hawraman region on the Iran-Iraq border.
Yarsani theology holds Sultan Sahak to be a manifestation of the Divine Essence and reckons him among the Haftan, the company of seven angelic beings central to Yarsani cosmology, so his life is remembered through devotional narrative as much as through ordinary biography. His teaching at Perdiwar is remembered by the tradition as the event that opened the current dowreh and gave rise to the oldest layer of the Kalam-e Saranjam, the tradition's central sacred literature.
The kalams associated with his circle, known as the Perdiwari texts, are considered the oldest and most authoritative layer of that literature. A single teaching episode at one village in the Hawraman region is, in Yarsani understanding, both a historical founding and a cosmological event, the moment a manifestation of the Divine Essence opened the religious cycle the tradition still reckons itself within today.