瑜伽論記 14.296

14.296

三藏云：初是空門，中三無願門，後一無相門。問：何故第二破我乃言無願，今更解初二是空，空行攝空無我行故，中二無願門。景云：上三是空，次一無願，後一無相。

The Tripiṭaka Master says: The first is the approach of emptiness, the middle three are the approach of wishlessness, and the last one is the approach of signlessness. Question: Why is it that the second, which refutes the self, is said to be wishlessness? Now it is re-explained that the first two are emptiness, because the practice of emptiness subsumes the practices of emptiness and non-self, while the middle two are the approach of wishlessness. Jing says: The first three are emptiness, the next one is wishlessness, and the last one is signlessness.