Yoga Sutras of Patanjali · 1.30

व्याधिस्त्यानसंशयप्रमादालस्याविरतिभ्रान्तिदर्शनालब्धभूमिकत्वानवस्थितत्वानि चित्तविक्षेपास्तेऽन्तरायाः ॥३०॥

vyādhistyānasaṁśayapramādālasyāviratibhrāntidarśanālabdhabhūmikatvānavasthitatvāni cittavikṣepāste 'ntarāyāḥ

The obstacles are disease, dullness, doubt, negligence, laziness, craving, false vision, failure to reach a stage, and inability to remain in a stage attained.

— Yoga Sutras of Patanjali 1.30

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).