四分律行事鈔資持記 1.542

1.542

大界相中，初示內相。若下，明外相。此圖不通內唱，特示西南相涉，令識過相。又下，恐避參涉而穿牆心唱。故此遮之。

In the markers of the great boundary: first, it indicates the inner markers. From "if..." onward, it clarifies the outer markers. This diagram does not allow chanting inside; it specifically illustrates the overlapping in the southwest, so that the mark of the fault may be recognized. From "further..." onward, it fears that to avoid overlapping they might pierce the core of the wall to chant, and therefore prevents this.