MahāvaggavaggaSabbamatthītikathā

Abhidhammapiṭaka · Kathāvatthu · Vol. 37 · Section 378

[378] S. Does a past Fully Self-Enlightened One (sammāsambuddha) exist, does a future Fully Self-Enlightened One exist, does a present Fully Self-Enlightened One exist? P. Yes. S. Is there a face-to-face co-presence of the three Fully Self-Enlightened Ones? P. It should not be said thus. …

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.