Mahabharata 12.220.24
अनिश्चयो हि युद्धेषु द्वयोर्विवदमानयोःएकः प्राप्नोति विजयमेकश्चैव पराभवम्
aniścayo hi yuddheṣu dvayorvivadamānayoḥekaḥ prāpnoti vijayamekaścaiva parābhavam
Our plain-language meaning of this verse is waiting for scholar review.
Open in the book