The Book of the Gradual Sayings
The Book of the Eights
Chapter VII: On Earthquakes
Translated from the Pali by E.M. Hare.
 Thus have I heard:
Once the Exalted One was dwelling near Saavatthii.
There the Exalted One addressed the monks, saying:
'Yes, lord,' they replied, and the Exalted One said:
'Monks, there are these eight Ariyan practices.
Declaring as seen what has been seen;
declaring as heard what has been heard;
declaring as felt what has been felt;
declaring as understood what has been understood;
declaring as not seen what has not been seen;
declaring as not heard what has not been heard;
declaring as not felt what has not been felt;
declaring as not understood what has not been understood.
Monks, these are the eight Ariyan practices.'