According to Osho, the law of karma operates only for the unconscious; 'karma' means action done without awareness. In sannyas, you fit yourself to awareness, acting totally and consciously, so each act is complete and leaves no residue—no karmic chain. Conscious, non-reactive living dissolves predictability and manipulation; thus a sannyasin steps out of karma rather than trying to adjust sannyas to prior beliefs.
Karma sticks when you act on autopilot; make life a conscious sannyas and your actions won’t leave chains.