俱舍論疏 5.203

5.203

論「一法一時至許俱有故」，經部示非理也。一一法上同時具有生等四相，即法生時應即滅等，同有體故。

On the treatise passage: "A single phenomenon at a single time … because they are admitted to co-exist": the Sautrāntika shows the unreasonableness. Since a single phenomenon would simultaneously possess all four characteristics—arising and the rest—then when the phenomenon arises, it should immediately cease, and so on, because they equally possess real existence.