The Vaishyas tilled well the earth with the help of bullocks and they never yoked kine to the plough. They carefully fed the lean ones.
कारयन्तः कृर्षि गोभिस्तथा वैश्याः क्षिताविह। युञ्जते धुरि नो गाश्च कृशां गांश्चाप्यजीवयन्॥