Bhagavad Gita 18.44 — In Other Languages

Agriculture, cattle-rearing and trade are the duties of the Vaisya (merchant), born of (their own) nature; and action consisting of service is the duty of the Sudra (servant-class), born of (their own) nature.

कृषि, गौपालन तथा वाणिज्य - ये वैश्य के स्वाभाविक कर्म हैं, और शूद्र का स्वाभाविक कर्म है परिचर्या अर्थात् सेवा करना।।