Saṃyutta Nikāya 47
Connected Discourses on the Establishments of Mindfulness
“Venerable sir, it would be good if the Blessed One would teach me the Dhamma in brief, so that, having heard the Dhamma from the Blessed One, I might dwell alone, withdrawn, diligent, ardent, and resolute.”
“Well then, Bahiya, purify the very starting point of wholesome states. And what is the starting point of wholesome states? Virtue that is well purified and view that is straight. Then, Bahiya, when your virtue is well purified and your view is straight, based upon virtue, established upon virtue, you should develop the four establishments of mindfulness.
“What four? Here, Bahiya, dwell contemplating the body in the body, ardent, clearly comprehending, mindful, having removed covetousness and displeasure in regard to the world. Dwell contemplating feelings in feelings … mind in mind … phenomena in phenomena, ardent, clearly comprehending, mindful, having removed covetousness and displeasure in regard to the world.
“When, Bahiya, based upon virtue, established upon virtue, you develop these four establishments of mindfulness in such a way, then whether night or day comes, you may expect only growth in wholesome states, not decline.”
Then the Venerable Bahiya, having delighted and rejoiced in the Blessed One’s words, rose from his seat, and, after paying homage to the Blessed One, keeping him on his right, he departed. Then, dwelling alone, withdrawn, diligent, ardent, and resolute, the Venerable Bahiya, by realizing it for himself with direct knowledge, in this very life entered and dwelt in that unsurpassed goal of the holy life for the sake of which clansmen rightly go forth from the household life into homelessness. He directly knew: “Destroyed is birth, the holy life has been lived, what had to be done has been done, there is no more for this state of being.” And the Venerable Bahiya became one of the arahants.