Yoga Sutras of Patanjali · 3.17

शब्दार्थप्रत्ययानामितरेतराध्यासात्सङ्करस्तत्प्रविभागसंयमात्सर्वभूतरुतज्ञानम्॥१७॥

śabda-artha-pratyayānām itaretarādhyāsāt saṅkaras tat-pravibhāga-saṁyamāt sarva-bhūta-ruta-jñānam

Word, meaning, and idea are usually confused with one another by mutual superimposition. By sanyama on their distinction, knowledge of the sounds and speech of all creatures arises.

— Yoga Sutras of Patanjali 3.17

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).