Rig Veda 10.12

ब्राह्मणोऽस्य मुखमासीद्बाहू राजन्यः कृतः । ऊरू तदस्य यद्वैश्यः पद्भ्यां शूद्रो अजायत ॥

brahmano'sya mukham asid bahu rajanyah kritah | uru tad asya yad vaishyah padbhyam shudro ajayata

The Brahmana was his mouth; the Rajanya was made his arms. His thighs became the Vaishya; from his feet the Shudra was born.

ब्राह्मण उसका मुख थे, राजन्य उसकी भुजाएँ बनाए गए। उसकी जंघाएँ वैश्य थीं, पादों से शूद्र उत्पन्न हुए।