Mahabharata 5.19.23

तथा माहिष्मतीवासी नीलो नीलायुधैः सहमहीपालो महावीर्यैर्दक्षिणापथवासिभिः

tathā māhiṣmatīvāsī nīlo nīlāyudhaiḥ sahamahīpālo mahāvīryairdakṣiṇāpathavāsibhiḥ

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