Mahabharata 1.181.22
युद्धं तूपेयतुस्तत्र राजञ्शल्यवृकोदरौबलिनौ युगपन्मत्तौ स्पर्धया च बलेन च
yuddhaṃ tūpeyatustatra rājañśalyavṛkodaraubalinau yugapanmattau spardhayā ca balena ca
Our plain-language meaning of this verse is waiting for scholar review.
Open in the book