योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-41, verse-14

यज्जाग्रति सुषुप्तत्वं बोधादरसवासनम् ।
तं स्वभावं विदुस्तज्ज्ञा मुक्तिस्तत्परिणामिता ॥ १४ ॥

yajjāgrati suṣuptatvaṃ bodhādarasavāsanam ,
taṃ svabhāvaṃ vidustajjñā muktistatpariṇāmitā 14

14. The waking which has the semblance of sound sleep and has no liking nor cringing for anything; is said to be the idiosyncrasy of man by the wise and the harbinger of human liberation.