[333] Thus have I heard. On one occasion the Blessed One was dwelling at Sāvatthī, in the Eastern Park, in the mansion of Migāra's mother. Then the Venerable Ānanda, having emerged from seclusion (paṭisallāna) in the evening, approached the Blessed One; having approached and paid homage to the Blessed One, he sat down to one side. Seated to one side, the Venerable Ānanda said this to the Blessed One: "Venerable sir, on one occasion the Blessed One was dwelling among the Sakyans, at a market town of the Sakyans named Nagaraka. There, venerable sir, I heard in the Blessed One's presence, I received in his presence, this: 'Ānanda, I now dwell much in the dwelling of emptiness (suññatā-vihāra).' I trust, venerable sir, that I heard this well, learned it well, attended to it well, and retained it well?"
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.