3.
The Discourse on Sutanu
901.
On one occasion the Venerable Anuruddha was dwelling at Sāvatthī on the bank of the Sutanu.
Then several monks approached the Venerable Anuruddha;
having approached, they exchanged friendly greetings with the Venerable Anuruddha.
Having concluded the pleasant and memorable talk, they sat down to one side.
Seated to one side, those monks said this to the Venerable Anuruddha -
"Because of having developed and cultivated which qualities has the Venerable Anuruddha attained great direct knowledge?"
"Because of having developed and cultivated the four establishments of mindfulness, friends, I have attained great direct knowledge. Which four? Here I, friend, dwell observing the body in the body, ardent, fully aware, mindful, having removed covetousness and displeasure regarding the world; in feelings... etc. In mind... etc. I dwell observing mental phenomena in mental phenomena, ardent, fully aware, mindful, having removed covetousness and displeasure regarding the world - because of having developed and cultivated these four establishments of mindfulness, friends, I have attained great direct knowledge. And moreover, friends, because of having developed and cultivated these four establishments of mindfulness, I directly knew the inferior state as inferior, I directly knew the middling state as middling, I directly knew the superior state as superior." The third.