Fargard XI
Zarathustra asked Ahura Mazda: 'O Ahura Mazda! most beneficent spirit, Maker of the material world, thou Holy One! How shall I cleanse the house? how the fire? how the water? how the earth? how the cow? how the tree? how the faithful man and the faithful woman? how the stars? how the moon? how the sun? how the boundless light? how all good things, made by Mazda, the offspring of the holy principle?'