योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-166, verse-40

एकं महाचिति शिलोदरमेव सर्वं सौषिर्यवर्जितमपारमनादिमध्यम् ।
तेनात्मनैव कलिता कलनात्मनेयं सर्गो जगद्भुवनमित्यपि दृश्यनाम्नी ॥ ४० ॥

ekaṃ mahāciti śilodarameva sarvaṃ sauṣiryavarjitamapāramanādimadhyam ,
tenātmanaiva kalitā kalanātmaneyaṃ sargo jagadbhuvanamityapi dṛśyanāmnī 40

40. Thus all this plenum is situated, in the bosom of the great rock of the intellect; which is without its beginning, middle and end, and without any hole therein, or doorway thereto. Therefore it is the Supreme soul only which contemplates in itself, and produces (as the object of its thought), this ideal creation of the universe (or the one converted into many), and which passes under the title of the visible or phenomenal world.