Bhagavad-gītā 4.20
BG 4.20
Open the full passageत्यक्त्वा कर्मफलासङ्गं नित्यतृप्तो निराश्रयः । कर्मण्यभिप्रवृत्तोऽपि नैव किञ्चित्करोति सः ॥२०॥
Sanskrit
tyaktvā karma-phalāsaṅgaṁ nitya-tṛpto nirāśrayaḥ karmaṇy abhipravṛtto 'pi naiva kiñcit karoti saḥ
Translation
Abandoning all attachment to the results of his activities, ever satisfied and independent, he performs no fruitive action, although engaged in all kinds of undertakings.