Yoga Sutras of Patanjali · 1.38

स्वप्ननिद्राज्ञानालम्बनं वा ॥३८॥

svapnanidrājñānālambanaṁ vā

Or, by taking as object the knowledge gained in dream or dreamless sleep.

— Yoga Sutras of Patanjali 1.38

Source: Sanskrit attributed to Patanjali (c. 2nd century BCE – 4th century CE). Public-domain English readings drawn from Swami Vivekananda's 'Raja Yoga' (1896) and Charles Johnston's 'The Yoga Sutras of Patanjali' (1912).