เหตุปัจจัย
Paccayaniddesa
1. Hetupaccayaniddesavaṇṇanā
[1] Idāni pana sabbepi te paccaye uddiṭṭhapaṭipāṭiyā niddisitvā dassetuṃ hetupaccayoti hetū hetusampayuttakānaṃ dhammānaṃ taṃsamuṭṭhānānañca rūpānaṃ hetupaccayena paccayotiādimāha. Tattha hetupaccayoti catuvīsatiyā paccayesu nikkhittapaṭipāṭiyā sabbapaṭhamaṃ bhājetabbassa ayaṃ paduddhāro. Sesapaccayesupi imināva nayena paṭhamaṃ bhājetabbapadaṃ uddharitvā vissajjanaṃ katanti veditabbaṃ. Ayaṃ panettha padasambandho 2-:- yo paccayuddese hetupaccayoti uddiṭṭho, so niddesato "hetū hetusampayuttakānaṃ dhammānaṃ taṃsamuṭṭhānānañca rūpānaṃ hetupaccayena paccayo"ti evaṃ veditabbo. Iminā upāyena sabbapaccayesu bhājetabbapadassa vissajjanena saddhiṃ sambandho veditabbo.
Idāni hetū hetusampayuttakānanti ettha "hetusampayuttakānan"ti avatvā "hetū hetusampayuttakānan"ti kasmā vuttanti? paccayassa ceva paccayuppannānañca vavatthāpanato. Hetusampayuttakānanti hi vutte hetunā sampayuttakānaṃ hetupaccayena paccayoti attho bhaveyya. Evaṃ sante asuko nāma dhammo hetupaccayena paccayoti paccayassa vavatthānaṃ na paññāyeyya. Athāpi hetunā sampayuttakānaṃ hetusampayuttakānanti atthaṃ aggahetvāva yesaṃ kesañci sampayuttakānaṃ hetū hetupaccayena paccayoti attho bhaveyya, evaṃ sante hetunā vippayuttā cakkhuviññāṇādayopi sampayuttakāyeva, hetunā sampayuttā kusalādayopi. Tattha ayaṃ hetu asukassa nāma sampayuttakadhammassa paccayoti paccayuppannavavatthānaṃ na paññāyeyya. Tasmā paccayañceva paccayuppanne ca vavatthāpento "hetū hetusampayuttakānan"ti āha. Tassattho:- hetusampayuttakānaṃ kusalādidhammānaṃ yo