Mahabharata 12.3.3
विदितास्त्रस्ततः कर्णो रममाणोऽऽश्रमे भृगोःचकार वै धनुर्वेदे यत्नमद्भुतविक्रमः
viditāstrastataḥ karṇo ramamāṇo''śrame bhṛgoḥcakāra vai dhanurvede yatnamadbhutavikramaḥ
Our plain-language meaning of this verse is waiting for scholar review.
Open in the book