俱舍論疏 18.22

18.22

論「此夜必和不經宿住」者，明破已經幾時。真諦師云：「日將暮時破，至夜三更還復和合，故言此夜必和不經宿住。」

[On] the treatise's [statement], "This night it must be reconciled and not remain overnight": This clarifies how long the schism has already lasted. Master Paramārtha says: "The schism occurs when the sun is about to set, and by the third watch of the night they are reconciled again; therefore it is said that this night it must be reconciled and does not remain overnight."