Bhagavad Gita 4.20
त्यक्त्वा कर्मफलासङ्गं नित्यतृप्तो निराश्रयः।
कर्मण्यभिप्रवृत्तोऽपि नैव किञ्चित्करोति सः।।4.20।।
Tyaktva karmaphalasangam nityatripto nirashrayah
Karmanyabhipravrittopi naiva kinchitkaroti sah
Simple meaning, written by AIOne who has relinquished attachment to the fruits of action, remains ever content and unattached, and even while engaged in work truly does nothing.