Catutthaanudhammasutta

sn22.42:1.1 At Sāvatthī.

sn22.42:1.2 “Mendicants, when a mendicant is practicing in line with the teaching, this is what’s in line with the teaching. They should meditate observing not-self in form, feeling, perception, choices, and consciousness. …

sn22.42:1.3 They’re freed from suffering, I say.”