In the Gathas The divinity Airyaman does not appear in the
Gathas, the oldest texts of Zoroastrianism and considered to have been composed by
Zoroaster himself. In the few instances where the term does appear (
Yasna 32.1, 33.3, 33.4, 49.7),
airyaman is a common noun denoting the social division of priests.
In the Younger Avesta According to a cosmogonical story preserved in the
Vendidad, not long after Ahura Mazda had created the world,
Angra Mainyu unleashed innumerable sicknesses upon it. In response, Ahura Mazda requested
Manthra Spenta,
Sraosha and Airyaman to find cures for them, promising each that he would reward them and bless them with
Dahma Afriti. With Airyaman's assistance, Ahura Mazda then brought 10,000 plants to the earth, so providing
Thraetaona with the means to cure the world of all ills (
Vendidad 22.5). Airyaman is closely associated with
Asha Vahishta, the
Amesha Spenta of "Best Truth" (or "Best Righteousness"). In
Vendidad 20.11 and in
Yasht 2 (dedicated to the seven Amesha Spentas), he is described as "following"
asha, which is what Asha Vahishta is the hypostasis of. The third
Yasht, which is nominally a hymn to Asha Vahishta is for the greater part a praise of the
airyaman ishyo, which in Zoroastrian tradition is considered to be an invocation of the divinity Airyaman. Like the truth/order (
asha) that is preserved through the proper recitation of prayer, "Airyaman does not heal by means of herbs and drugs, medicine and surgery, but by the holy spells." Although Airyaman does not have a day-name dedication in the
Zoroastrian calendar, he is invoked together with Asha Vahishta on the third day of the month (
Siroza 2.3). Airyaman's stock epithet is
ishya "desirable" (
Yasna 27.5,
Visparad 1.8, 2.10,
Vendidad 22.9, 22.19, 22.20). In other passages of the
Vendidad, Airyaman is "vow-fulfilling" (11.7, 21.20 and 21.21). ==In tradition==