7.
The Discourse on Stains
167.
"There are, monks, these three stains.
What three?
Lust is a stain, hate is a stain, delusion is a stain -
these, monks, are the three stains.
For the direct knowledge, full understanding, utter elimination, and abandoning of these three stains, monks, etc.
this noble eightfold path is to be developed."
The seventh.