The Tipiṭaka in Three Languages

Satipaṭṭhānavibhaṅgasuttantabhājanīya

Abhidhammapiṭaka · Vibhaṅga · Vol. 35 · Section 456

[456] "Mindful" (satimā): Herein, what is mindfulness (sati)? That which is mindfulness, recollection (anussati) … right mindfulness (sammāsati) — this is called mindfulness. He is endowed with this mindfulness … possessed of it. Therefore he is called "mindful."

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.

This passage also appears in 4 other places