Mahabharata 6.99.16

तत्रासीत्सुमहद्युद्धं तव तेषां च संकुलम्नराश्वरथनागानां यमराष्ट्रविवर्धनम्

tatrāsītsumahadyuddhaṃ tava teṣāṃ ca saṃkulamnarāśvarathanāgānāṃ yamarāṣṭravivardhanam

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