Mahabharata 9.62.32
ततः प्रायान्महाराज माधवो भगवान्रथीनागसाह्वयमासाद्य प्रविवेश च वीर्यवान्
tataḥ prāyānmahārāja mādhavo bhagavānrathīnāgasāhvayamāsādya praviveśa ca vīryavān
Our plain-language meaning of this verse is waiting for scholar review.
Open in the book