The Buddha teaches his disciples to avoid any occupation or job that causes harm and suffering to other living beings or any kind of work that leads to one's own inner deterioration. Instead the disciple should earn a living in an honest, harmless and peaceful way.

Buddha mentions five specific occupations that one should avoid:

(a) Dealing in flesh, eg. as a butcher.
(b) Dealing in poisons.
(c) Dealing in weapons and arms.
(d) Dealing in slave trade and prostitution.
(e) Dealing in intoxicants or liquors and drugs.

The Buddha also says that his followers should avoid deceitfulness, hypocrisy, high pressure salesmanship, and trickery, or any kind of dishonest way of acquiring means of support.