SN 36.1
CDB ii 1260
Samadhi Sutta: Concentration
translated from the Pali by
Nyanaponika Thera

"There are, O monks, these three feelings: pleasant feelings, painful feelings, and neither-painful-nor-pleasant feelings."

A disciple of the Buddha, mindful, clearly comprehending, with his mind collected, he knows the feelings [1] and their origin, [2] knows whereby they cease [3] and knows the path that to the ending of feelings lead. [4] And when the end of feelings he has reached, such a monk, his thirsting quenched, attains Nibbana." [5]

Notes

1 .
Comy.: He knows the feelings by way of the Truth of Suffering.
2 .
Comy.: He knows them by way of the Truth of the Origin of Suffering.
3 .
Comy.: He knows, by way of the Truth of Cessation, that feelings cease in Nibbana.
4 .
Comy.: He knows the feelings by way of the Truth of the Path leading to the Cessation of Suffering.
5 .
Parinibbuto, "fully extinguished"; Comy.: through the full extinction of the defilements (kilesa-parinibbanaya).