Manusmriti

siva.sh/manusmriti/7/199

अनित्यो विजयो यस्माद् दृश्यते युध्यमानयोः । पराजयश्च सङ्ग्रामे तस्माद् युद्धं विवर्जयेत् ॥ १९९ ॥

sanskrit

For when two (princes) fight, victory and defeat in the battle are, as experience teaches, uncertain; let him therefore avoid an engagement.

english translation

anityo vijayo yasmAd dRzyate yudhyamAnayoH | parAjayazca saGgrAme tasmAd yuddhaM vivarjayet || 199 ||

hk transliteration by Sanscript