Aparādiṭṭhisutta

Suttapiṭaka · Saṁyuttanikāya · Sagāthāvaggasaṁyutta · Vol. 15 · Section 574

[574] Then the Blessed One, having known with his own mind the reflection in that brahmā's mind, just as a strong man … appeared in that brahmā world. Then the Blessed One sat down cross-legged in the air above that brahmā, having entered upon the fire element (tejodhātu).

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.