Mahabharata 3.71.32

वार्ष्णेयेन भवेन्नूनं विद्या सैवोपशिक्षितातेनास्य रथनिर्घोषो नलस्येव महानभूत्

vārṣṇeyena bhavennūnaṃ vidyā saivopaśikṣitātenāsya rathanirghoṣo nalasyeva mahānabhūt

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