Mahabharata 13.47.14

वर्णे तृतीये जातस्तु वैश्यायां ब्राह्मणादपिद्विरंशस्तेन हर्तव्यो ब्राह्मणस्वाद्युधिष्ठिर

varṇe tṛtīye jātastu vaiśyāyāṃ brāhmaṇādapidviraṃśastena hartavyo brāhmaṇasvādyudhiṣṭhira

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