Bhagavad Gita 3.19

Therefore, without attachment, always perform the actions that should be done; for by performing actions without attachment, one reaches the Supreme.

Therefore, do your duty perfectly, without worrying about the results, for he who does his duty without attachment attains the Supreme.

Therefore, remaining unattached, always perform the obligatory duty; for, by performing one's duty without attachment, a person attains the highest.

इसलिये तू निरन्तर आसक्तिरहित होकर कर्तव्य-कर्मका भलीभाँति आचरण कर; क्योंकि आसक्तिरहित होकर कर्म करता हुआ मनुष्य परमात्माको प्राप्त हो जाता है।