Mahabharata 13.48.44

आर्यरूपसमाचारं चरन्तं कृतके पथिस्ववर्णमन्यवर्णं वा स्वशीलं शास्ति निश्चये

āryarūpasamācāraṃ carantaṃ kṛtake pathisvavarṇamanyavarṇaṃ vā svaśīlaṃ śāsti niścaye

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