Bhagwad Gita
Chapter 18, Verse 47
श्रेयान्स्वधर्मो विगुणः परधर्मात्स्वनुष्ठितात्।स्वभावनियतं कर्म कुर्वन्नाप्नोति किल्बिषम्।।18.47।।
It is better to engage in one's own occupation, even though one may perform it imperfectly, than to accept another's occupation and perform it perfectly. Prescribed duties, according to one's nature, are never affected by sinful reactions.