Mahabharata 9.35.12

तेषां तु कर्मणा राजंस्तथैवाध्ययनेन चत्रितः स श्रेष्ठतां प्राप यथैवास्य पिता तथा

teṣāṃ tu karmaṇā rājaṃstathaivādhyayanena catritaḥ sa śreṣṭhatāṃ prāpa yathaivāsya pitā tathā

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