四明十義書 2.75

2.75

又觀六識妄心成三諦真心，上人因誰開解？若謂奉先座下得聞，且《示珠指》全不約妄釋心，亦無觀妄成真之說。若謂自尋《止觀》得知，都是妄語。何者？若先知觀心是六識妄心，終不以圓談法性故廢觀心，終不以果理貫六即便謂純明理觀，終不以正談果理以為直顯心性也。

Furthermore, regarding contemplating the deluded mind of the six consciousnesses to accomplish the true mind of the three truths, from whom did you obtain this understanding? If you say you heard it under Fengxian, the Shizhu zhi does not explain mind in terms of delusion at all, nor does it contain the doctrine of contemplating the deluded to accomplish the true. If you say you learned it by searching the Zhiguan yourself, that is entirely a lie. Why? If you had previously known that contemplating the mind refers to the deluded mind of the six consciousnesses, you would never have abolished contemplating the mind on account of the perfect discourse on dharmatā; you would never have claimed that because the principle of the fruit pervades the six identities it purely clarifies principle contemplation; and you would never have taken the direct discussion of the principle of the fruit to be directly revealing the mind-nature.