Uttiya Sutta (SN 47:16)
At Sāvatthī. Then Ven. Uttiya went to the Blessed One and, on arrival, having bowed down to him, sat to one side. As he was sitting there, he said to the Blessed One, “It would be good, lord, 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, secluded, heedful, ardent, & resolute.”
“In that case, Uttiya, purify the very basis with regard to skillful mental qualities. And what is the basis of skillful mental qualities? Well-purified virtue & views made straight. Then, when your virtue is well purified and your views made straight, in dependence on virtue, established in virtue, you should develop the four establishings of mindfulness. Which four? There is the case where a monk remains focused on the body in & of itself—ardent, alert, & mindful—subduing greed & distress with reference to the world. He remains focused on feelings in & of themselves… mind in & of itself… mental qualities in & of themselves—ardent, alert, & mindful—subduing greed & distress with reference to the world. When, in dependence on virtue, established in virtue, you develop these four establishings of mindfulness in this way, you will go beyond Māra’s realm.”
Then Ven. Uttiya, delighting in & approving of the Blessed One’s words, got up from his seat, bowed down to the Blessed One, circled around him, keeping the Blessed One to his right side, and left. Then, dwelling alone, secluded, heedful, ardent, & resolute, he in no long time entered & remained in the supreme goal of the holy life for which clansmen rightly go forth from home into homelessness, directly knowing & realizing it for himself in the here & now. He knew: “Birth is ended, the holy life fulfilled, the task done. There is nothing further for the sake of this world.” And thus Ven. Uttiya became another one of the arahants.