Here is the Sanskrit anuvad, Hindi anuvad, and English translation of Karma Yoga Chapter 3, Verse 3.8.
Sanskrit
नियतं कुरु कर्म त्वं कर्म ज्यायो ह्यकर्मणः । शरीरयात्रापि च ते न प्रसिद्ध्येदकर्मणः ॥ ३.८ ॥
Hindi
तू शास्त्रविहित कर्तव्यकर्म कर; क्योंकि कर्म न करनेकी अपेक्षा कर्म करना श्रेष्ठ है तथा कर्म न करनेसे तेरा शरीर- निर्वाह भी नहीं सिद्ध होगा|
English
Perform the actions that you have been obliged to perform, or that have been prescribed for you. Action is always better than inaction, If one is inactive, he cannot live, simply because he is not performing the action of maintaining his body.