Bhagavad Gita · 3.8
नियतं कुरु कर्म त्वं कर्म ज्यायो ह्यकर्मणः।शरीरयात्रापि च ते न प्रसिद्ध्येदकर्मणः॥
niyataṁ kuru karma tvaṁ karma jyāyo hy akarmaṇaḥ śharīra-yātrāpi cha te na prasiddhyed akarmaṇaḥ
Perform your prescribed duties, for action is superior to inaction. Even the maintenance of your body would not be possible through inaction.
— Bhagavad Gita 3.8
Source: Sacred-Texts.com (Sanskrit) + Bhagavad-Gita.io (translations)