大般涅槃經義記 9.187

9.187

第十九門辨明佛性即離之義。先辨諍相。有人宣說五陰之相即是佛性，有人說離。次須論理，理則佛性不即不離，實不同相故言不即，相實是性非令相外名為不離。義既如是，不得偏執。文中但明說性不即，凡聞起諍。不離一邊，略而不舉。若欲更辨，不異後門，為是不說。明不即中有四復次：一說性六事，人謂定離；二說性如空，人謂定離；三說性如似宅中寶藏，人謂定離；四說犯禁及闡提等皆有佛性，人謂定離。

The nineteenth section analyzes and clarifies the meaning of buddha-nature as identical [to the skandhas] or separate [from them]. First, the aspects of the dispute are distinguished: some declare that the marks of the five aggregates are identical to buddha-nature, while others say it is separate. Next, the principle must be discussed: in principle, buddha-nature is neither identical nor separate. Because the reality is not the same as the marks, it is called 'not identical'; because the marks are truly the nature and do not exist outside of the marks, it is called 'not separate'. Since the principle is like this, one must not be one-sidedly attached. The text only explains the teaching that nature is not identical, upon hearing which ordinary people raise disputes. The side of 'not separate' is omitted and not cited. If one wished to analyze it further, it would not differ from the subsequent sections; for this reason it is not discussed. In explaining 'not identical', there are four subdivisions: first, six aspects of the nature are taught, which people take to be definitely separate; second, the nature is taught to be like space, which people take to be definitely separate; third, the nature is taught to be like a hidden treasure in a house, which people take to be definitely separate; fourth, it is taught that those who violate the prohibitions, icchantikas, and others all have buddha-nature, which people take to be definitely separate.