大毘盧遮那成佛經疏 2.32

2.32

第二「云何無貪心？謂隨順無染法」者，謂與前心相違，乃至所應進求善處，亦復不生願樂。是故不染善法俱障善萠，與無染污心名同事異，最須觀察也。是故行者但觀貪心實相，自然貪不染心，不應起如是無慧不貪之行。

Second, “What is the mind free of greed? It means following non-defiled phenomena.” This means running contrary to the previous mind, even up to not generating aspiration or joy toward wholesome states that one should strive to seek. Therefore, both non-defilement and wholesome phenomena obstruct the sprout of goodness; having the same name as the undefiled mind but a different reality, it must be observed most carefully. Therefore, the practitioner should simply contemplate the true nature of the mind of greed, and naturally greed will not defile the mind; one should not give rise to such conduct of non-greed devoid of wisdom.