Paṭhamasikkhattayasutta
“Tisso imā, bhikkhave, sikkhā. Katamā tisso? Adhisīlasikkhā, adhicittasikkhā, adhipaññāsikkhā.
Three Trainings (1st)
“Mendicants, these are the three trainings. What three? The training in the higher ethics, the higher mind, and the higher wisdom.