Hetu

Vipākaṃ dhammaṃ saṃsaṭṭho vipāko dhammo uppajjati hetupaccayā—  vipākaṃ ekaṃ khandhaṃ saṃsaṭṭhā tayo khandhā. (Saṃkhittaṃ. Sabbāni padāni vitthāretabbāni.)