Yoga Sutras of Patanjali · 1.51

तस्यापि निरोधे सर्वनिरोधान्निर्बीजः समाधिः ॥५१॥

tasyāpi nirodhe sarvanirodhānnirbījaḥ samādhiḥ

When even this last impression is stilled, all is stilled, and that is seedless samadhi.

— Yoga Sutras of Patanjali 1.51

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).