Mahabharata 7.13.41

राक्षसौ भीमकर्माणौ हैडिम्बालम्बुसावुभौचक्रातेऽत्यद्भुतं युद्धं परस्परवधैषिणौ

rākṣasau bhīmakarmāṇau haiḍimbālambusāvubhaucakrāte'tyadbhutaṃ yuddhaṃ parasparavadhaiṣiṇau

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