dhānya-dārv-asthi-tantūnāḿ
rasa-taijasa-carmaṇām
kāla-vāyv-agni-mṛt-toyaiḥ
pārthivānāḿ yutāyutaiḥ
dhanya -- of grains; daru -- of wood (in the form of both ordinary objects and sacred utensils); asthi -- bone (such as elephant tusks); tantunam -- and thread; rasa -- of liquids (oil, ghee, etc.); taijasa -- fiery objects (gold, etc.); carmanam -- and skins; kala -- by time; vayu -- by air; agni -- by fire; mrit -- by earth; toyaih -- and by water; parthivanam -- (also) of earthen objects (such as chariot wheels, mud, pots, bricks, etc.); yuta -- in combination; ayutaih -- or separately.
The word kala, or "time," is mentioned here, since all purificatory processes take place within time.