2.
The Discourse on Serenity and Insight
367.
"I will teach you, monks, the unconditioned and the path leading to the unconditioned.
Listen to that.
And what, monks, is the unconditioned?
That which, monks, is the elimination of lust, the elimination of hate, the elimination of delusion -
this is called, monks, the unconditioned.
And what, monks, is the path leading to the unconditioned?
Serenity and insight.
This is called, monks, the path leading to the unconditioned, etc.
The second.