[29] Bhikkhus, these four nutriments (āhāra) — what is their source (nidāna), what is their origin, from what are they born, from what are they produced? These four nutriments have craving (taṇhā) as their source, craving as their origin; they are born from craving, produced from craving. And this craving, bhikkhus — what is its source, what is its origin, from what is it born, from what is it produced? Craving has feeling (vedanā) as its source, feeling as its origin; it is born from feeling, produced from feeling. And this feeling, bhikkhus — what is its source, what is its origin, from what is it born, from what is it produced? Feeling has contact (phassa) as its source, contact as its origin; it is born from contact, produced from contact. And this contact, bhikkhus — what is its source, what is its origin, from what is it born, from what is it produced? Contact has the six sense bases (saḷāyatana) as its source, the six sense bases as its origin; it is born from the six sense bases, produced from the six sense bases. And these six sense bases, bhikkhus — what is their source, what is their origin, from what are they born, from what are they produced? The six sense bases have name-and-form (nāmarūpa) as their source, name-and-form as their origin; they are born from name-and-form, produced from name-and-form. And this name-and-form, bhikkhus — what is its source, what is its origin, from what is it born, from what is it produced? Name-and-form has consciousness (viññāṇa) as its source, consciousness as its origin; it is born from consciousness, produced from consciousness. And this consciousness, bhikkhus — what is its source, what is its origin, from what is it born, from what is it produced? Consciousness has volitional formations (saṅkhārā) as its source, volitional formations as its origin; it is born from volitional formations, produced from volitional formations. And these volitional formations, bhikkhus — what is their source, what is their origin, from what are they born, from what are they produced? Volitional formations have ignorance (avijjā) as their source, ignorance as their origin; they are born from ignorance, produced from ignorance. Thus indeed, bhikkhus, with ignorance as condition, volitional formations come to be; with volitional formations as condition, consciousness … Such is the origin of this whole mass of suffering (dukkha).
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.