摩訶止觀 4.121

4.121

人事是業也。業生三界，往來五道。以愛潤業，處處受生；若無業者，愛無所潤。諸業雖有力，不逐不作者；不作故，生死則斷。

Human affairs are karma. Karma generates [rebirth in] the three realms and wandering through the five destinies. When karma is moistened by craving, one receives birth everywhere; if there is no karma, there is nothing for craving to moisten. Although various karmas have power, they do not pursue one who does not act; because one does not act, birth and death are cut off.