Chapter 4 · verse 12 · gita.yoga.org

Bhagavad Gita 4.12

काङ्क्षन्तः कर्मणां सिद्धिं यजन्त इह देवताः। क्षिप्रं हि मानुषे लोके सिद्धिर्भवति कर्मजा

Those who long for success in action in this world sacrifice to the gods; for success is quickly attained by men through action.