Mahabharata 13.3.1
युधिष्ठिर उवाच · yudhiṣṭhira uvāca
ब्राह्मण्यं यदि दुष्प्रापं त्रिभिर्वर्णैर्नराधिपकथं प्राप्तं महाराज क्षत्रियेण महात्मना
brāhmaṇyaṃ yadi duṣprāpaṃ tribhirvarṇairnarādhipakathaṃ prāptaṃ mahārāja kṣatriyeṇa mahātmanā
Our plain-language meaning of this verse is waiting for scholar review.