Sakkapañhasutta

Suttapiṭaka · Dīghanikāya · Mahāvagga · Vol. 10 · Section 251

[251] And it is in this way that the Tathāgatas salute spirits (yakkha) of such great majesty. Having been thus saluted, Sakka, lord of gods, entered the Blessed One's Indasāla Cave, paid homage to the Blessed One, and stood to one side. The gods of the Thirty-three (Tāvatiṃsa) also entered the Indasāla Cave, paid homage to the Blessed One, and stood to one side. Pañcasikha, son of the gandhabbas, too entered the Indasāla Cave, paid homage to the Blessed One, and stood to one side. Now at that time the uneven places in the Indasāla Cave became even; the cramped places became spacious; the darkness in the cave vanished and light arose — such being the effect of the divine power of the gods.

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.