Yoga Sutras of Patanjali · 1.17

वितर्कविचारानन्दास्मितारूपानुगमात्सम्प्रज्ञातः ॥१७॥

vitarkavicārānandāsmitārūpānugamātsamprajñātaḥ

Cognitive samadhi is accompanied by reasoning, reflection, bliss, or pure I-am-ness.

— Yoga Sutras of Patanjali 1.17

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).