TIPITAKA Volume 44 : PALI ROMAN Abhidhamma Pitaka Vol 11 : Abhi. Pa.(5) Anulomadukattikapaṭṭhānaṃ Hetudukasappaṭighadukaṃ

[37] Nahetuṃ sappaṭighaṃ dhammaṃ paṭicca nahetu sappaṭigho dhammo uppajjati hetupaccayā:. Sabbattha ekaṃ.