Mahabharata 1.122.47

सूतपुत्रश्च राधेयो गुरुं द्रोणमियात्तदास्पर्धमानस्तु पार्थेन सूतपुत्रोऽत्यमर्षणःदुर्योधनमुपाश्रित्य पाण्डवानत्यमन्यत

sūtaputraśca rādheyo guruṃ droṇamiyāttadāspardhamānastu pārthena sūtaputro'tyamarṣaṇaḥduryodhanamupāśritya pāṇḍavānatyamanyata

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