首楞嚴義疏注經 8.24

8.24

臭辣葷穢非可聖意，故不守護。魔不持戒，而修邪定及修世福，遂感魔宮。以定福力且順生報，其毀禁業順後方受，故云福盡墮獄。

Foul, pungent, and stinking filth does not accord with the sage's mind, so they do not protect them. The demons do not uphold the precepts, but cultivate wrong concentration and worldly blessings, thereby inducing birth in the demon palaces. By the power of their concentration and blessings, they temporarily accord with retribution in the next life; their karma of violating the prohibitions will be experienced only later, hence it is said 'when their blessings are exhausted, they fall into hell.'