Mahabharata 12.169.4

सोऽब्रवीत्पितरं पुत्रः स्वाध्यायकरणे रतम्मोक्षधर्मार्थकुशलो लोकतत्त्वविचक्षणः

so'bravītpitaraṃ putraḥ svādhyāyakaraṇe ratammokṣadharmārthakuśalo lokatattvavicakṣaṇaḥ

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