Mahabharata 8.4.40

उग्रकर्मा महेष्वासो नामतः कर्मतस्तथाशाल्वराजो महाराज भीमसेनेन पातितः

ugrakarmā maheṣvāso nāmataḥ karmatastathāśālvarājo mahārāja bhīmasenena pātitaḥ

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