BHAGAVAD GITA · 3.19

तस्मादसक्तः सततं कार्यं कर्म समाचर।असक्तो ह्याचरन्कर्म परमाप्नोति पूरुषः॥

Therefore, giving up attachment, perform actions as a matter of duty because by working without being attached to the fruits, one attains the Supreme.