Bhagavad-gītā As It Is · Text 18.47
Natural duties and perfection through work
श्रेयान्स्वधर्मो विगुण: परधर्मात्स्वनुष्ठितात् ।
स्वभावनियतं कर्म कुर्वन्नाप्नोति किल्बिषम् ॥ ४७ ॥
śreyān sva-dharmo viguṇaḥ
para-dharmāt sv-anuṣṭhitāt
svabhāva-niyataṁ karma
kurvan nāpnoti kilbiṣam
Translation
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. Duties prescribed according to one’s nature are never affected by sinful reactions.
Read Śrīla Prabhupāda's purport on Vedabase.io