4.
The First Discourse at Kaṇḍakī
902.
On one occasion the Venerable Anuruddha and the Venerable Sāriputta and the Venerable Mahāmoggallāna were dwelling at Sāketa in the Kaṇḍakī Grove.
Then the Venerable Sāriputta and the Venerable Mahāmoggallāna, in the evening, having emerged from seclusion, 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, the Venerable Sāriputta said this to the Venerable Anuruddha -
"Friend Anuruddha, what mental states should be attained and dwelt in by a trainee monk?"
"Friend Sāriputta, the four establishments of mindfulness should be attained and dwelt in by a trainee monk. Which four? Here, friend, a monk dwells observing the body in the body, ardent, fully aware, mindful, having removed covetousness and displeasure regarding the world; in feelings... etc. In mind... etc. he dwells observing mental phenomena in mental phenomena, ardent, fully aware, mindful, having removed covetousness and displeasure regarding the world - Friend Sāriputta, these four establishments of mindfulness should be attained and dwelt in by a trainee monk." The fourth.