Mahabharata 12.36.28

चतुष्पात्सकलो धर्मो ब्राह्मणानां विधीयतेपादावकृष्टो राजन्ये तथा धर्मो विधीयते

catuṣpātsakalo dharmo brāhmaṇānāṃ vidhīyatepādāvakṛṣṭo rājanye tathā dharmo vidhīyate

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