Dattatreya,
Avadhuta Gita (अवधूत गीता) — Chapter 3
“ I am the nectar of knowledge, homogeneous existence, like the sky. Because the knowledge of all that exists, depends upon the preexistence of a consciousness which can come to know the known, even the knowing consciousness is preceded by Pure Awareness. Thus it follows that I am the source of existence yet in myself I am without form, yet all form flows from me; as does the existence of the consciousness. ”

