Manusmriti

siva.sh/manusmriti/8/410

वाणिज्यं कारयेद् वैश्यं कुसीदं कृषिमेव च । पशूनां रक्षणं चैव दास्यं शूद्रं द्विजन्मनाम् ॥ ४१० ॥

sanskrit

(The king) should order a Vaisya to trade, to lend money, to cultivate the land, or to tend cattle, and a Sudra to serve the twice-born castes

english translation

vANijyaM kArayed vaizyaM kusIdaM kRSimeva ca | pazUnAM rakSaNaM caiva dAsyaM zUdraM dvijanmanAm || 410 ||

hk transliteration by Sanscript