[693] Therein, which are the nine sense-sphere roots (kāmāvacara-hetū)?
Three wholesome roots (kusala-hetū), three unwholesome roots (akusala-hetū), three indeterminate roots (abyākata-hetū) — these are the nine sense-sphere roots.
Therein, which are the six form-sphere roots (rūpāvacara-hetū)?
Three wholesome roots, three indeterminate roots — these are the six form-sphere roots.
Therein, which are the six formless-sphere roots (arūpāvacara-hetū)?
Three wholesome roots, three indeterminate roots — these are the six formless-sphere roots.
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.