Niruttipathasutta
Sāvatthinidānaṁ. “Tayome, bhikkhave, niruttipathā adhivacanapathā paññattipathā asaṅkiṇṇā asaṅkiṇṇapubbā, na saṅkīyanti, na saṅkīyissanti, appaṭikuṭṭhā samaṇehi brāhmaṇehi viññūhi. Katame tayo? Yaṁ, bhikkhave, rūpaṁ atītaṁ niruddhaṁ vipariṇataṁ ‘ahosī’ti tassa saṅkhā, ‘ahosī’ti tassa samaññā, ‘ahosī’ti tassa paññatti; na tassa saṅkhā ‘atthī’ti, na tassa saṅkhā ‘bhavissatī’ti.
The Scope of Definition
At Sāvatthī. “Mendicants, there are these three scopes of definition, labeling, and description. They’re uncorrupted, as they have been since the beginning. They’re not being corrupted now, nor will they be. Sensible ascetics and brahmins don’t look down on them. What three? When form has passed, ceased, and perished, its designation, label, and description is ‘was’. It’s not ‘is’ or ‘will be’.