Yoga Sutras of Patanjali · 2.4

अविद्या क्षेत्रमुत्तरेषां प्रसुप्ततनुविच्छिन्नोदाराणाम् ॥४॥

avidyā kṣetram uttareṣāṁ prasupta-tanu-vicchinnodārāṇām

Ignorance is the field for the others, whether they are dormant, attenuated, intercepted, or fully active.

— Yoga Sutras of Patanjali 2.4

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).