瑜伽論記 15.10

15.10

第三明煩惱相應，心王自性清淨，但由相應故隨眠逐故深。景云：小乘論中，毘婆達婆提分別部能取大乘中，此義為宗，故彼說言心性本淨，客塵障故，說為不淨，後離障時，還得清淨言。

Third, it explains association with defilements. The sovereign mind is pure in its intrinsic nature, but only because of association and being pursued by latent propensities does it become deeply [defiled]. Jing says: "Among the treatises of the Hīnayāna, the Vibhajyavādins are able to adopt this meaning from the Mahāyāna as their doctrine; hence they say: 'The nature of mind is originally pure; because adventitious dust obscures it, it is said to be impure; later, when free from obscurations, it regains purity.'"