Mahabharata 8.59.25

ततो गदां नृनागाश्वेष्वाशु भीमो व्यवासृजत्सा जघान बहूनश्वानश्वारोहांश्च मारिष

tato gadāṃ nṛnāgāśveṣvāśu bhīmo vyavāsṛjatsā jaghāna bahūnaśvānaśvārohāṃśca māriṣa

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