[797] A phenomenon (dhamma) of the formless sphere (arūpāvacara) is a condition for a phenomenon of the formless sphere by root condition (hetu-paccaya): roots (hetū) of the formless sphere are a condition for the associated aggregates (sampayuttakā khandhā) by root condition. At rebirth-linking (paṭisandhi).
The root (mūlaṃ) [is to be supplied]: roots of the formless sphere are a condition for mind-originated forms (cittasamuṭṭhānā rūpā) by root condition.
The root [is to be supplied]: roots of the formless sphere are a condition for the associated aggregates and mind-originated forms by root condition.
A phenomenon that is not of the formless sphere is a condition for a phenomenon that is not of the formless sphere by root condition: roots that are not of the formless sphere are a condition for the associated aggregates and mind-originated forms by root condition. At rebirth-linking.
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.