Mahabharata 7.19.22

ब्राह्मणस्य वशं नाहमियामद्य यथा प्रभोपारावतसवर्णाश्व तथा नीतिर्विधीयताम्

brāhmaṇasya vaśaṃ nāhamiyāmadya yathā prabhopārāvatasavarṇāśva tathā nītirvidhīyatām

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