Yoga Sutras of Patanjali · 2.55

ततः परमा वश्यतेन्द्रियाणाम् ॥५५॥

tataḥ paramā vaśyatendriyāṇām

From pratyahara comes supreme mastery of the senses.

— Yoga Sutras of Patanjali 2.55

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).