Chapter 10 · verse 7 · gita.yoga.org
Bhagavad Gita 10.7
एतां विभूतिं योगं च मम यो वेत्ति तत्त्वतः। सोऽविकम्पेन योगेन युज्यते नात्र संशयः
He who truly knows these manifold manifestations of My Being and this Yoga-power of Mine, becomes established in unshakable Yoga; there is no doubt about it.