Chapter 4 · verse 18 · gita.yoga.org

Bhagavad Gita 4.18

कर्मण्यकर्म यः पश्येदकर्मणि च कर्म यः। स बुद्धिमान् मनुष्येषु स युक्तः कृत्स्नकर्मकृत्

He who sees inaction in action and action in inaction, he is wise among men; he is a yogi and performer of all actions.