Manusmriti

siva.sh/manusmriti/10/119

स्वधर्मो विजयस्तस्य नाहवे स्यात् पराङ्मुखः । शस्त्रेण वैश्यान् रक्षित्वा धर्म्यमाहारयेद् बलिम् ॥ ११९ ॥

sanskrit

His peculiar duty is conquest, and he must not turn back in danger; having protected the Vaisyas by his weapons, he may cause the legal tax to be collected;

english translation

svadharmo vijayastasya nAhave syAt parAGmukhaH | zastreNa vaizyAn rakSitvA dharmyamAhArayed balim || 119 ||

hk transliteration by Sanscript