Mahabharata 12.271.59

युधिष्ठिर उवाच · yudhiṣṭhira uvāca

अयं स भगवान्देवः पितामह जनार्दनःसनत्कुमारो वृत्राय यत्तदाख्यातवान्पुरा

ayaṃ sa bhagavāndevaḥ pitāmaha janārdanaḥsanatkumāro vṛtrāya yattadākhyātavānpurā

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