Yoga Sutras of Patanjali · 2.25

तदभावात्संयोगाभावो हानं तद्दृशेः कैवल्यम् ॥२५॥

tad-abhāvāt saṁyogābhāvo hānaṁ tad dṛśeḥ kaivalyam

With the absence of ignorance, the conjunction ceases — and this cessation is the liberation of the seer, called kaivalya.

— Yoga Sutras of Patanjali 2.25

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).