Mahabharata 6.50.7
रथैरनेकसाहस्रैः कलिङ्गानां जनाधिपःअयुतेन गजानां च निषादैः सह केतुमान्भीमसेनं रणे राजन्समन्तात्पर्यवारयत्
rathairanekasāhasraiḥ kaliṅgānāṃ janādhipaḥayutena gajānāṃ ca niṣādaiḥ saha ketumānbhīmasenaṃ raṇe rājansamantātparyavārayat
Our plain-language meaning of this verse is waiting for scholar review.