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

[25] Hetuṃ hetuñcevahetusampayuttañca dhammaṃ paṭicca hetu hetucevahetusampayuttoca dhammo uppajjati hetupaccayā:. Sabbattha ekaṃ.