Astabakra Gita-
Chapter-18
Sloka-16.
Yena Drusta Parambrahma Soham Brahmeti Chintayet.
Kim Chintayet Nischinto Dwitiyam Yo Na Pasyati
The person who sees Param Brahma as an entity , he thinks”Aham Brahmasmi(I am the supreme God)” But the one who has already ascertained Aham Brahmasmi (I am the supreme God)”does have nothing to think.
Prajnanam Brahma. 