摩訶止觀 5.238

5.238

若前念非滅非不滅而後念心生者：為有此非滅非不滅？為無此非滅非不滅？若有，則非無因；若無，無因不能生。若無因有生性者，此性即因，何謂無因？若無，無不能生。

If the subsequent thought-mind arises when the prior thought has neither ceased nor not ceased: does this state of neither cessation nor non-cessation exist, or does this state of neither cessation nor non-cessation not exist? If it exists, it is not without cause; if it does not exist, nonexistence without cause cannot produce anything. If that which is without cause possesses a nature of arising, this nature is itself a cause, so how could it be without cause? If it does not exist, nonexistence cannot produce anything.