Bhagavad Gita 5.13
Mentally renouncing all actions, the self-controlled soul enjoys bliss in this body, the city of the nine gates, neither doing anything themselves nor causing anything to be done.
सर्वकर्माणि मनसा संन्यस्यास्ते सुखं वशी।
नवद्वारे पुरे देही नैव कुर्वन्न कारयन्॥sarvakarmāṇi manasā saṃnyasyāste sukhaṃ vaśī|
navadvāre pure dehī naiva kurvanna kārayan||
English translation (above): Shri Purohit Swami (1935), public domain. Sanskrit text via github.com/gita/gita (Unlicense).