Vibhaṅgasutta

Suttapiṭaka · Saṁyuttanikāya · Nidānavaggasaṁyutta · Vol. 16 · Section 8

[8] And what, bhikkhus, is existence (bhava)? There are, bhikkhus, these three kinds of existence: sense-sphere existence (kāmabhava), form existence (rūpabhava), and formless existence (arūpabhava). This, bhikkhus, is called existence.

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.