Visuddhimagga XV-30

Pathavītejovāyodhātuyo phoṭṭhabbadhātuyeva,

「地界、火界、风界」只是触界而已。

Ñ(XV,30): The earth, fire, and air elements are the tangible-data element;

āpodhātu ākāsadhātu ca dhammadhātuyeva.

「水界和空界」只是法界。

Ñ: the water element and the space element are the mental-data element only;

Viññāṇadhātu cakkhuviññāṇādisattaviññāṇadhātusaṅkhepoyeva.

「识界」只是眼识等七识界的简略之说。

Ñ: 'consciousness element' is a term summarizing the seven consciousness elements beginning with eye-consciousness.