योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-83, verse-25

आत्मनात्मनि चिच्छून्यं ज्ञात्वा च ज्ञेयमप्यलम् ।
तथा च सर्गादारभ्य वेत्ति स्वं कचनं च तत् ॥ २५ ॥

ātmanātmani cicchūnyaṃ jñātvā ca jñeyamapyalam ,
tathā ca sargādārabhya vetti svaṃ kacanaṃ ca tat 25

25. The divine soul knowing everything in itself, and in its vacuous intellect, sees the manifestation of the universe at the time of creation, by simple development of itself.