Mahabharata 13.17.35

लोकपालोऽन्तर्हितात्मा प्रसादो हयगर्दभिःपवित्रश्च महांश्चैव नियमो नियमाश्रयः

lokapālo'ntarhitātmā prasādo hayagardabhiḥpavitraśca mahāṃścaiva niyamo niyamāśrayaḥ

Our plain-language meaning of this verse is waiting for scholar review.