Mahabharata 13.30.6

ब्राह्मणः सर्वभूतानां मतङ्ग पर उच्यतेब्राह्मणः कुरुते तद्धि यथा यद्यच्च वाञ्छति

brāhmaṇaḥ sarvabhūtānāṃ mataṅga para ucyatebrāhmaṇaḥ kurute taddhi yathā yadyacca vāñchati

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