8.
The First Discourse on the Cloud
156.
"Just as, monks, in the last month of summer, the dust and dirt that has been raised up, a great untimely rain cloud causes to disappear with reason and cause, and appeases it;
so too, monks, a monk developing the noble eightfold path, cultivating the noble eightfold path, causes to disappear with reason and cause whatever evil unwholesome mental states have arisen, and appeases them.
And how, monks, does a monk developing the noble eightfold path, cultivating the noble eightfold path, cause to disappear with reason and cause whatever evil unwholesome mental states have arisen, and appease them?
Here, monks, a monk develops right view, etc.
he develops right concentration, based upon seclusion, based upon dispassion, based upon cessation, maturing in release, etc.
Thus, monks, a monk developing the noble eightfold path, cultivating the noble eightfold path, causes to disappear with reason and cause whatever evil unwholesome mental states have arisen, and appeases them."
The eighth.