So I have heard. At one time the Buddha was staying in the land of the Aṅguttarāpans, near the town of theirs named Āpaṇa.
Then the Buddha robed up in the morning and, taking his bowl and robe, entered Āpaṇa for alms. He wandered for alms in Āpaṇa. After the meal, on his return from almsround, he went to a certain forest grove for the day’s meditation. Having plunged deep into it, he sat at the root of a certain tree to meditate.
Venerable Udāyī also robed up in the morning and, taking his bowl and robe, entered Āpaṇa for alms. He wandered for alms in Āpaṇa. After the meal, on his return from almsround, he went to that forest grove for the day’s meditation. Having plunged deep into it, he sat at the root of a certain tree to meditate. Then as Venerable Udāyī was in private retreat this thought came to his mind:
“The Buddha has rid us of so many things that bring suffering and gifted us so many things that bring happiness! He has rid us of so many unskillful things and gifted us so many skillful things!”