Chapter 18 · verse 48 · gita.yoga.org

Bhagavad Gita 18.48

सहजं कर्म कौन्तेय सदोषमपि न त्यजेत्।सर्वारम्भा हि दोषेण धूमेनाग्निरिवावृताः

One should not, O Arjuna, abandon the duty to which one is born, though it may be faulty; for, all undertakings are enveloped by evil, just as fire is by smoke.