Mahabharata 7.52.24
द्रोण उवाच · droṇa uvāca
सममाचार्यकं तात तव चैवार्जुनस्य चयोगाद्दुःखोचितत्वाच्च तस्मात्त्वत्तोऽधिकोऽर्जुनः
samamācāryakaṃ tāta tava caivārjunasya cayogādduḥkhocitatvācca tasmāttvatto'dhiko'rjunaḥ
Our plain-language meaning of this verse is waiting for scholar review.