तस्मादसक्तः सततं कार्यं कर्म समाचर।
असक्तो ह्याचरन्कर्म परमाप्नोति पूरुषः।।3.19।।
3.19. Therefore, unattached always, you should perform action that is to be performed; for, the person, performing action without attachment, attains the Supreme.
3.17-19 Yas ca etc. upto purusah. However, for a person who rejoices in the Self and performs action simply as a [routine] business of organs of action, there is no difference between (his) action and nonaciton. That is why he inflicts punishment on, or does favour to, every being, not with desire for any gain for himself, but with a conviction that it a is thing that deserves to be performed. Therefore, just unattached, one should perform action that is to be performed.
Tasmaad asaktah satatam kaaryam karma samaachara; Asakto hyaacharan karma param aapnoti poorushah.
tasmāt—therefore; asaktaḥ—without attachment; satatam—constantly; kāryam—duty; karma—action; samāchara—perform; asaktaḥ—unattached; hi—certainly; ācharan—performing; karma—work; param—the Supreme; āpnoti—attains; pūruṣhaḥ—a person