Purusa Sukta
ब्राह्मणोऽस्य मुखमासीद् बाहू राजन्यः कृतः । ऊरू तदस्य यद्वैश्यः पद्भ्यां शूद्रो अजायत ॥१२॥
The Brahmanas were his mouth, the kshatriyas became his arms, the vaishyas were his thighs, and the shudras were assigned to his feet.
english translation
ब्राह्मणोऽस्य मुखमासीद् बाहू राजन्यः कृतः । ऊरू तदस्य यद्वैश्यः पद्भ्यां शूद्रो अजायत ॥१२॥
The Brahmanas were his mouth, the kshatriyas became his arms, the vaishyas were his thighs, and the shudras were assigned to his feet.
english translation