Bhagavad Gita Chapter 4 Verse 20
भगवद् गीता अध्याय 4 श्लोक 20

त्यक्त्वा कर्मफलासङ्गं नित्यतृप्तो निराश्रयः।
कर्मण्यभिप्रवृत्तोऽपि नैव किञ्चित्करोति सः।।4.20।।



हिंदी अनुवाद - स्वामी तेजोमयानंद
।।4.20।। जो पुरुष कर्मफलासक्ति को त्यागकर नित्यतृप्त और सब आश्रयों से रहित है वह कर्म में प्रवृत्त होते हुए भी (वास्तव में) कुछ भी नहीं करता है।।


Kumara Vaishnava Sampradaya - Commentary
Whoever has completely given up all desires and attachments to  rewards  for
actions, who is also nitya-trypto or totally content immersed  in  the  atma
or soul,  whoever  is  self  satisfied  never  depending  on  anything  from
prakriti or material existence. Such a person although seen to  be  intently
performing various prescribed actions, in reality performs inaction  meaning
no action that has any binding effect. Because although  externally  such  a
person might appear as if performing activities but internally  that  person
is actually cultivating spiritual knowledge and meditating on the  atma  and
thus exempt from any  binding  effect.  Lord  Krishna  gives  the  spiritual
intelligence aspect of actions is next.