四分律刪繁補闕行事鈔 1.278

1.278

若有五門三門，及籬柵牆塹，斜角方屈，隨處稱之，準上式也。若有障隔，欲穿牆直過，當唱院名，依院牆唱相。

If there are five gates or three gates, as well as fences, enclosures, walls, or moats, with diagonal corners or rectangular turns, name them according to the location, following the above formula. If there are partitions and one wishes to go straight through a wall, one should chant the name of the courtyard and chant the boundary marks relying on the courtyard wall.