Mahabharata 13.51.22

अनर्घेया महाराज द्विजा वर्णमहत्तमाःगावश्च पृथिवीपाल गौर्मूल्यं परिकल्प्यताम्

anargheyā mahārāja dvijā varṇamahattamāḥgāvaśca pṛthivīpāla gaurmūlyaṃ parikalpyatām

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