[64] 10. Thus have I heard. On one occasion the Blessed One was dwelling at Anupiyā, in the Mango Grove. Now on that occasion the Venerable Bhaddiya, Kāḷigodhā's son, whether gone to the forest, gone to the root of a tree, or gone to an empty dwelling, frequently uttered this exclamation (udāna): "Ah, what happiness! Ah, what happiness!"
Many bhikkhus heard the Venerable Bhaddiya, Kāḷigodhā's son — whether gone to the forest, gone to the root of a tree, or gone to an empty dwelling — frequently uttering this exclamation: "Ah, what happiness! Ah, what happiness!" Having heard it, it occurred to them: "Without doubt, friends, the Venerable Bhaddiya, Kāḷigodhā's son, leads the holy life (brahmacariya) dissatisfied: recalling the happiness of kingship that was his formerly, when he was a householder, he — whether gone to the forest, gone to the root of a tree, or gone to an empty dwelling — frequently utters this exclamation: 'Ah, what happiness! Ah, what happiness!'"
Then many bhikkhus approached the Blessed One; having approached and paid homage to the Blessed One, they sat down to one side. Sitting to one side, those bhikkhus said this to the Blessed One: "Venerable sir, the Venerable Bhaddiya, Kāḷigodhā's son, whether gone to the forest, gone to the root of a tree, or gone to an empty dwelling, frequently utters this exclamation: 'Ah, what happiness! Ah, what happiness!' Without doubt, Bhaddiya, Kāḷigodhā's son, is dissatisfied … 'Ah, what happiness!'"
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.