Bhagavad Gita, Chapter 3, Verse 17

But the man who is devoted to the Self, who is satisfied with the Self, and content in the Self alone, for him there is no obligatory duty.

Someone who's already whole on the inside isn't bound by the same obligations everyone else carries.

This isn't a loophole for laziness, it describes someone who has genuinely stopped needing anything external to feel complete. Duty exists to move a person toward that inner fullness, so once it's actually reached, the requirement naturally falls away.