四分律行事鈔資持記 2.2108

2.2108

次科，初示同。唯下，顯別。反明別住不常在僧，非日日白僧。但行法制必僧中，不得同宿。恐有濫行，故注示之。

In the next section: first, it shows the similarities. From "only" below, it reveals the differences. By contrast, it clarifies that parivāsa is not constantly within the saṃgha, and does not require daily announcement to the saṃgha. However, the rule of practice requires it to be within the saṃgha, and one must not lodge overnight in the same room. Fearing that there might be improper practice, it is pointed out in the notes.