宗鏡錄 80.12

80.12

問。若眾生自實。名為佛性。覺此性故。名為佛者。但了一性。即契本原。云何教中。或說二三四五種等佛性不同。

Question: If the very reality of sentient beings themselves is named the Buddha-nature, and awakening to this nature is what is called being a Buddha, then merely realizing the one nature would accord with the fundamental source. Why, then, in the teachings, are two, three, four, or five different kinds of Buddha-nature sometimes spoken of?