四分律行事鈔資持記 2.643

2.643

次科，標中。若據村聚，合在初明。但舍在聚外，故須對顯。復由舍聚二界相濫，寄此辨之；故云對上因解也。

In the next section, in the heading: if based on villages and settlements, it should have been clarified at the beginning. However, because houses are outside settlements, they must be displayed in contrast. Furthermore, because house boundaries and settlement boundaries are easily confounded, this is used to distinguish them; hence it says, "explained by contrast with the above."