Mahabharata 3.260.2

अग्निरुवाचयः स विश्रवसः पुत्रो दशग्रीवो महाबलःअवध्यो वरदानेन कृतो भगवता पुरा

agniruvācayaḥ sa viśravasaḥ putro daśagrīvo mahābalaḥavadhyo varadānena kṛto bhagavatā purā

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