瑜伽論記 4.242

4.242

三藏云：梵本經論竝無內字，譯加內字義亦無妨。備云：初但解脫境體未解脫境類，體謂欲界死尸等類，色謂色界色。

The Tripiṭaka master says: Neither Sanskrit manuscripts of sūtras nor treatises have the word "internal"; translating with the addition of the word "internal" does not impair the meaning. Bei says: The first merely liberates the substance of the object, not the category of the object. "Substance" refers to corpses and so forth of the desire realm; "category" refers to the form of the form realm.