SB 11.16.23

yajñānām — of sacrifices; brahma-yajñaḥ — study of the Veda; aham — I am; vratānām — of vows; avihiṁsanam — nonviolence; vāyu — wind; agni — fire; arka — the sun; ambu — water; vāk — and speech; ātmā — personified; śucīnām — of all purifiers; - — indeed; aham — I am; śuciḥ — pure.