瑜伽論記 6.264

6.264

明遮顯中，前明遮，後明顯。言若於善品勤修習者乃至修入而轉不安穩住者，正修善時諸惡尋思令隨順趣向諸惡惡法將起故言修入而轉。

In clarifying exclusion and manifestation, first exclusion is clarified, and afterwards manifestation is clarified. The statement: "If one diligently cultivates wholesome qualities..." up to "cultivating and entering, yet continuing to abide unpeacefully," means that when one is properly cultivating the wholesome, various bad thoughts cause one to comply with and tend toward various bad and evil dharmas that are about to arise; hence it is said: "cultivating and entering, yet continuing to [abide unpeacefully]."