Visuddhimagga XIV-87

Arūpāvacaraṃ catunnaṃ āruppānaṃ yogavasena catubbidhaṃ.

（三）（无色界善心）无色界善心，因为与四无色相应而有四种；

Ñ(XIV,87): I. C. That of the immaterial sphere is fourfold by association with the four immaterial states;

Vuttappakārena hi ākāsānañcāyatanajjhānena sampayuttaṃ paṭhamaṃ,

即如（前面四无色业处中）所说，（14）与空无边处禅相应的为第一，

Ñ: for (14) the first is associated with the jhāna of the base consisting of boundless space in the way aforesaid,

viññāṇañcāyatanādīhi dutiyatatiyacatutthāni.

（15）～（17）与识无边处等相应的为第二、第三、第四。

Ñ: while (15)-(17) the second, third, and fourth, are [respectively] associated with those of the base consisting of boundless consciousness, and so on.