Mahabharata 4.57.1

वैशंपायन उवाच · vaiśaṃpāyana uvāca

अथ संगम्य सर्वे तु कौरवाणां महारथाःअर्जुनं सहिता यत्ताः प्रत्ययुध्यन्त भारत

atha saṃgamya sarve tu kauravāṇāṃ mahārathāḥarjunaṃ sahitā yattāḥ pratyayudhyanta bhārata

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