Iti 101
Itivuttaka: The Group of Fours
translated from the Pali by
Thanissaro Bhikkhu
This was said by the Blessed One, said by the Arahant, so I have heard: "These four things are next to nothing, both easy to gain & blameless. Which four? Cast-off cloth is next to nothing, both easy to gain & blameless. Alms food is next to nothing, both easy to gain & blameless. The root of a tree as a dwelling place is next to nothing, both easy to gain & blameless. Medicine made of smelly urine[1] is next to nothing, both easy to gain & blameless. These are the four things that are next to nothing, both easy to gain & blameless. When a monk is content with what is next to nothing, easy to gain & blameless, then I say that he has one of the component factors of the contemplative life."
Content with what's blameless, next-to-nothing, easy to gain, his mind not vexed over lodging, clothing, food, or drink: the four directions offer him no obstruction. These things are declared congenial for the contemplative life, possessed by the monk heedful, content.
Note
1. This is one of a monk's basic requisites. There is some disagreement as to whether it refers to medicine pickled in urine, or to the use of urine as a medicine (as is still practiced in parts of Asia today).