योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-63, verse-34

इत्थमाद्यन्तरहित एष दृश्यमयो भ्रमः ।
ब्रह्मैव ब्रह्मवित्पक्षे नात्रेयत्तास्ति काचन ॥ ३४ ॥

itthamādyantarahita eṣa dṛśyamayo bhramaḥ ,
brahmaiva brahmavitpakṣe nātreyattāsti kācana 34

34. Thus the visibles having neither beginning nor end, are all but erroneous conceptions of the mind; they are no other than Brahma to the knower of God, who sees no reality in aught besides.