BG 18.45
स्वे स्वे कर्मण्यभिरतः संसिद्धिं लभते नरः
स्वकर्मनिरतः सिद्धिं यथा विन्दति तच्छृणु
sve sve karmaṇyabhirataḥ saṃsiddhiṃ labhate naraḥ
svakarmanirataḥ siddhiṃ yathā vindati tacchṛṇu
TRANSLATION
Devoted to his duty, man attains perfection. Hear now how one devoted to his own duty attains perfection.
PURPORT
When one is devoted to his own duty in a way mentioned earlier, he attains perfection i.e., the supreme state. When a person is devoted to his duty, how he attains perfection, i.e., attains the supreme state, listen.