Yoga Sutras of Patanjali · 3.19

प्रत्ययस्य परचित्तज्ञानम्॥१९॥

pratyayasya para-citta-jñānam

By sanyama on the cognition of another, knowledge of their mind arises.

— Yoga Sutras of Patanjali 3.19

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).