大般涅槃經集解 65.66

65.66

案僧亮曰：第九地佛性有因有果，因即眾生非離也。果非眾生，繫屬於因，亦不說離也。而或者以眾生無常，便言其離，是則失旨也。僧宗曰：第十九諍論也。若論正義，佛性於中道而言因與果異，不得言即；不離因而得果，不得異也。聞說同於虛空，謂一向離眾生外別有此性，都不相關。聞說實藏，便言已有，在於因中。皆不當理，為諍論也。

Sengliang comments: The buddhadhātu of the ninth bhūmi has cause and fruit. The cause is sentient beings and is not apart [from them]. The fruit is not sentient beings, but is tied to the cause, nor is it said to be apart. Yet some, taking sentient beings to be impermanent, say that it is apart; this misses the point. Sengzong says: This is the nineteenth dispute. In terms of the correct doctrine, with the buddhadhātu in the middle path, the cause and the fruit are different, so one cannot say they are identical; yet one does not obtain the fruit apart from the cause, so they cannot be different. Hearing that it is identical to empty space, they think this nature exists entirely apart from and outside sentient beings, completely unrelated. Hearing of the true treasury, they say it already exists within the cause. None of these accords with principle, becoming matters of dispute.