四明十義書 1.70

1.70

《金錍》釋心性之名，本顯凡位情與無情俱是隨緣當體不變，以明俱有佛性也。那忽上人將佛界心釋之，則成《金錍》說佛有佛性，何關眾生與無情耶？又成《大意》以佛界心為所觀境，不成觀於現前陰心也。

When the Jinbi explains the name "mind-nature," it originally reveals that for ordinary persons, both the sentient and the insentient are following conditions while in their intrinsic essence unchanging, in order to clarify that both possess Buddha-nature. How can your reverence interpret it in terms of the mind of the Buddha realm? That would reduce the Jinbi to saying that Buddhas possess Buddha-nature—what relevance would that have to sentient beings and the insentient? It would also reduce the Dayi to taking the mind of the Buddha realm as the object of contemplation, rather than contemplating the aggregate mind present before us.