Mahabharata 3.188.14

राजानो ब्राह्मणा वैश्याः शूद्राश्चैव युधिष्ठिरव्याजैर्धर्मं चरिष्यन्ति धर्मवैतंसिका नराः

rājāno brāhmaṇā vaiśyāḥ śūdrāścaiva yudhiṣṭhiravyājairdharmaṃ cariṣyanti dharmavaitaṃsikā narāḥ

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