Bhagavad Gita 3.8

नियतं कुरु कर्म त्वं कर्म जयो ह्यकर्मण: |
शरीरयात्रापि च ते न प्रसिद्धयेदकर्मण:

Translation

You should thus perform your prescribed Vedic duties, since action is superior to inaction. By ceasing activity, even your bodily maintenance will not be possible.