Bhagavad Gītā Chapter Two verse 48

yogasthaḥ kuru karmāṇi saṅgaṃ tyaktvā dhanaṃjaya |
siddhyasiddhyoḥ samo bhūtvā samatvaṃ yoga ucyate ||

siddhi - accomplishment, performance, fulfilment, attainment, successsamatvam - equanimity

Commentaries and Reflections

TKV Desikachar:

When acting responsibly within our Dharma,
there is no attachment to the fruits.