योगवासिष्ठः yogavāsiṣṭhaḥ - book-3, chapter-11, verse-17

संवित्कचनमेवान्तर्यथा स्वप्ने जगद्भ्रमः ।
सर्गादौ ब्रह्मणि तथा जगत्कचनमाततम् ॥ १७ ॥

saṃvitkacanamevāntaryathā svapne jagadbhramaḥ ,
sargādau brahmaṇi tathā jagatkacanamātatam 17

17. As the illusion of the world in a dream, is not without our inward consciousness of it, in like manner Brahma was not unconscious of the expansion of the world, at the beginning of creation.