成唯識論述記 4.642

4.642

述曰：非求善定起染無記心，與加行因不相應故。彼若救言厭染起善心，厭善起染心何失？

The Commentary states: One does not seek a wholesome attainment and give rise to a defiled or indeterminate mind, because that is incongruent with the preparatory cause. If he defends by saying: "One reviles the defiled and gives rise to a wholesome mind; what fault is there in reviling the wholesome and giving rise to a defiled mind?"