योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-41, verse-4

न चोत्थितं किंच न वा शान्ते शान्तं यथास्थितम् ।
अनामयं परं ब्रह्म सत्यमव्ययमेव तत् ॥ ४ ॥

na cotthitaṃ kiṃca na vā śānte śāntaṃ yathāsthitam ,
anāmayaṃ paraṃ brahma satyamavyayameva tat 4

4. There is nothing prominent in it (as it appears to the naked eye); but all is situated on a perfect level, which is the calm intellect of one unvarying Brahma.