Mahabharata 15.30.9

गजैश्चाचलसंकाशैर्भीमकर्मा वृकोदरःसज्जयन्त्रायुधोपेतैः प्रययौ मारुतात्मजः

gajaiścācalasaṃkāśairbhīmakarmā vṛkodaraḥsajjayantrāyudhopetaiḥ prayayau mārutātmajaḥ

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