成唯識論述記 5.820

5.820

述曰：上引教已；下以理難。在定耳識率爾聞聲，雖意與彼同緣引起，理應非善。《瑜伽論》說率爾等五心中，前三定無記故。此約未轉依位五識，無漏時即唯善性故。

The Commentary states: Above, scripture has been cited; below, objection is made through reasoning. The ear-consciousness in concentration that hears a sound at the spontaneous (ābhoga-rahita/sahasā) moment, although induced by the mental consciousness taking the same cognitive object with it, is logically not wholesome. For the Yogācārabhūmi-śāstra states that among the five minds—the spontaneous and so forth—the first three are definitively indeterminate. This is stated with reference to the five consciousnesses in the state where the transformation of the basis (āśrayaparavṛtti) has not yet occurred, for at the untainted (anāsrava) stage they are exclusively wholesome in nature.