"yasmiṃ samaye kāmāvacaraṃ kusalaṃ cittan"ti hi niddisanto bhagavā samaye cittaṃ niddisi. Kiṃkāraṇā? tena samayaniyamitena cittena pariyosāne "tasmiṃ samaye"ti evaṃ samayaṃ niyamitvā atha vijjamānepi samayanānatte yasmiṃ samaye cittaṃ hoti, tasmiṃyeva samaye phasso hoti vedanā hotīti evaṃ tasmiṃ cittaniyamite samaye ete santatisamūhakiccārammaṇaghanavasena duranubodhappabhede phassavedanādayo dhamme bodhetunti attho.

Idāni yasmiṃ samayetiādīsu ayaṃ anupubbapadavaṇṇanā:- yasminti aniyamato bhummaniddeso. Samayeti aniyamaniddiṭṭhaparidīpanaṃ. Ettāvatā aniyamato samayo niddiṭṭho hoti. Tattha samayasaddo:-

samavāye khaṇe kāle samūhe hetudiṭṭhisu

paṭilābhe pahāne ca paṭivedhe ca dissati.