Mahabharata 7.25.20

येन नागेन मघवानजयद्दैत्यदानवान्स नागप्रवरो भीमं सहसा समुपाद्रवत्

yena nāgena maghavānajayaddaityadānavānsa nāgapravaro bhīmaṃ sahasā samupādravat

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