俱舍論疏 28.28

28.28

The Śāstra says: "There is no fault of being too broad [...] there are evil dhyānas." This is the answer. Just as a spoiled seed, although lacking generative capability, receives the name of 'seed' and not other things like earth, defilement is also like this: although not deliberating in the manner of the wholesome, because it is dhyāna it receives the designation 'dhyāna.' This is the rational proof. "The World-Honoured One also spoke of evil dhyānas" is citing scriptural proof.