Yoga Sutras of Patanjali · 3.40
समानजयाज्ज्वलनम्॥४०॥
samāna-jayāj jvalanam
By mastery of the equalizing vital air (samana), the yogi blazes with radiance.
— Yoga Sutras of Patanjali 3.40
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).