One verse

Srimad Bhagavatam 11.17.13

11.17.13

विप्रक्षत्रियविट्‍शूद्रा मुखबाहूरुपादजा: । वैराजात् पुरुषाज्जाता य आत्माचारलक्षणा: ॥ १३ ॥

vipra-kṣatriya-viṭ-śūdrā mukha-bāhūru-pāda-jāḥ vairājāt puruṣāj jātā ya ātmācāra-lakṣaṇāḥ

vipra
brāhmaṇas
kṣatriya
kṣatriyas, the martial class
viṭ
vaiśyas, mercantile men
śūdrāḥ
śūdras, workers
mukha
from the mouth
bāhu
arms
ūru
thighs
pāda
and legs
jāḥ
born
vairājāt
from the universal form
puruṣāt
from the Personality of Godhead
jātāḥ
generated
ye
who
ātma
personal
ācāra
by activities
lakṣaṇāḥ
recognized

In Tretā-yuga the four social orders were manifested from the universal form of the Personality of Godhead. The brāhmaṇas appeared from the Lord’s face, the kṣatriyas from the Lord’s arms, the vaiśyas from the Lord’s thighs and the śūdras from the legs of that mighty form. Each social division was recognized by its particular duties and behavior.