成唯識論演祕 2.512

2.512

謂六因中除能作因，餘五皆是因緣所攝，且同類因三性五蘊各自為因，如善識蘊望自為親，望餘四蘊名之為疎，以非識故，餘互相望親疎准此。

This means that among the six causes, excluding the efficient cause (kāraṇa-hetu), the remaining five are all subsumed under the causal condition (hetu-pratyaya). Furthermore, homogeneous causes (sabhāga-hetu) in the three moral natures and the five aggregates each serve as causes for themselves: for example, the wholesome aggregate of consciousness, with respect to itself, is called intimate; with respect to the other four aggregates, it is called remote, because they are not consciousness. The mutual intimacy and remoteness of the others should be understood by analogy with this.