仁王經疏 2.69

2.69

問：何故信忍現百身等，此順忍中但言一身？解云：信忍明其化身，故說多身。此說實身，故說一也。

Question: Why does faith patience manifest a hundred bodies and so forth, while this accordant patience only speaks of a single body? Answer: Faith patience clarifies its transformation bodies, hence speaks of multiple bodies. This speaks of the real body, hence speaks of one.