So I have heard. At one time the Buddha was staying near Sāvatthī in Jeta’s Grove, Anāthapiṇḍika’s monastery.

Then Esukārī the brahmin went up to the Buddha, and exchanged greetings with him. When the greetings and polite conversation were over, he sat down to one side and said to the Buddha:

“Worthy Gotama, the brahmins prescribe four kinds of service: for a brahmin, an aristocrat, a peasant, and a menial. This is the service they prescribe for a brahmin: ‘A brahmin, an aristocrat, a peasant, and a menial may all serve a brahmin.’ This is the service they prescribe for an aristocrat: ‘An aristocrat, a peasant, and a menial may all serve an aristocrat.’ This is the service they prescribe for a peasant: ‘A peasant or a menial may serve a peasant.’ This is the service they prescribe for a menial: ‘Only a menial may serve a menial. For who else will serve a menial?’ These are the four kinds of service that the brahmins prescribe. What do you say about this?”