4.
The Discourse on Non-self Suitable for Nibbāna
149.
"I will teach you, monks, the practice suitable for Nibbāna.
Listen to that, etc.
And what, monks, is that practice suitable for Nibbāna?
Here, monks, a monk sees the eye as non-self, sees visible forms as non-self, sees eye-consciousness as non-self, sees eye-contact as non-self, whatever feeling arises with eye-contact as condition - whether pleasant or unpleasant or neither-unpleasant-nor-pleasant - that too he sees as non-self, etc.
He sees the mind as non-self, sees mental phenomena as non-self, sees mind-consciousness as non-self, sees mind-contact as non-self, whatever feeling arises with mind-contact as condition - whether pleasant or unpleasant or neither-unpleasant-nor-pleasant - that too he sees as non-self.
This, monks, is that practice suitable for Nibbāna."
The fourth.