佛制比丘六物圖 1.57

1.57

二者、家界，（謂一聚內有多家者，亦有同別。若父母兄弟同處同業，名同界。異食異業名別界，即下族界也。）

Second, the household boundary; (referring to multiple households within one settlement, which also have shared and distinct forms. If parents and brothers share the same dwelling and the same livelihood, it is called a shared boundary. Separate meals and separate livelihoods are called distinct boundaries, which is the clan boundary below.)