Puṇṇamasutta

Suttapiṭaka · Saṁyuttanikāya · Khandhavaggasaṁyutta · Vol. 17 · Section 182

[182] On one occasion the Blessed One was dwelling at Sāvatthī in the Eastern Park (Pubbārāma), in the mansion of Migāra's mother, together with a great Saṅgha of bhikkhus. Now on that occasion — on the Uposatha day of the fifteenth, on the night of the full moon — the Blessed One was seated in the open air, surrounded by the Saṅgha of bhikkhus.

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.