維摩經略疏垂裕記 2.15

2.15

Second, the direct explanation, in three parts: first, regarding phenomena. That this is the same as in the Great Sūtra and difficult to distinguish refers to the difficulty of distinguishing between raw and ripe. "Fully possessing the four propositions" is seen in the text on contemplating the mind. "From a flower a daughter was born" and so forth: this relies on what is taught in the *Nai Nü Yinyuan Jing* (*Sūtra on the Causes and Conditions of the Mango Girl*).