仁王經疏 3.163

3.163

釋曰：第三、住在佛家。文別有二：初明住在佛家、後修六和敬。此即初也。謂空無我佛所住處，名為佛家。此習種性初證空理，故名為住。

Explanation: Third is abiding in the Buddha's household. The text has two distinct parts: first, explaining abiding in the Buddha's household; and next, cultivating the six points of reverent harmony. This is the first. Emptiness and non-self, which are the dwelling place of the Buddha, are called the Buddha's household. Because this lineage of practice initially realizes the principle of emptiness, it is called "abiding."