9.
The Discourse on What Should Be Recollected
153.
"I will teach you, monks, the mental state to be remembered and that not to be remembered.
Listen to that, etc.
And what, monks, is the mental state not to be remembered?
Wrong view, etc.
wrong liberation -
this is called, monks, the mental state not to be remembered.
And what, monks, is the mental state to be remembered?
Right view... etc.
right liberation -
this is called, monks, the mental state to be remembered."
The ninth.