Note 2 — Chapter XIII · Epistle to the Hebrews (A Sequel to Sophia Solomontos).
Reading edition
Thus spake Angra Mainyu, the guileful, the evil-doer, the deadly, “Fiend rush down upon him, destroy the holy Zoroaster!” The fiend came rushing; along, the demon Bûiti, the unseen death, the hell-born. Zoroaster chanted loudly the Ahuna-Vairya: “The will of the Lord is the law of holiness; the riches of Vohu-manô (heavenly wisdom) shall be given to him who works in this world for God (Mazda), and wields according to the all-knowing (Ahura) the power he gave him to relieve the poor. Profess (O Fiend) the law of God!” The fiend dismayed rushed away, and said to Angra Mainyu “O baneful Angra Mainyu, I see no way to kill him, so great is the glory of the holy Zoroaster.” Zoroaster saw all this from within his soul: “The evil-doing devils and demons take counsel together for my death.” Up started Zoroaster, forward went Zoroaster, unshaken by the evil spirit. “O evil-doer, Angra Mainyu. I will smite the creation of the Evil One (Daeva) till the fiend-smiter Saoshyant (Saviour) come up to life out of the lake Kasava, from the region of the dawn.”—Vendîdâd, Farg. xix, 1–5. (Sacred Books of the East, Vol. iv. pp. 204–6.)
The Ahuna-Vairya, recited by Zoroaster, was the prayer by which Ormazd in his first conflict with Ahreinan drove him back to hell.