Bhagavad Gita · Karma YogaChapter 3, Shloka 22 (3.22)

Acting while complete. For Krishna there is nothing left to gain and no duty to perform — yet he acts. This is the highest example of the self-satisfied person of 3.17–3.18.

Shankaracharya: na anavāptam aprāptam avāptavyaṃ prāpaṇīyam — there is nothing unattained that remains to be attained; tathāpi varte eva ca karmaṇi aham — even so I am engaged in action.

Acharya Ramanuja — the nature of Ishvara: sarveśvarasya avāpta-samasta-kāmasya sarvajñasya satya-saṅkalpasya — the Lord of all, all of whose desires are fulfilled, all-knowing, whose will always comes true; triṣu lokeṣu deva-manuṣyādi-rūpeṇa svacchandato vartamānasya — who moves through the three worlds by his own will in the forms of gods, humans and others — has no duty; athāpi loka-rakṣāyai karmaṇi eva varte — even so, for the protection of the world, I remain engaged in action.