俱舍論記 22.67

22.67

「以諸樂因至其相方顯」者，異部以理答。以諸樂因皆不定故，顯無實樂。謂諸所有衣服等事，若依時用、不過量用，諸有情類許為樂因。此若非時、過量受用，便能生苦，復成苦因。如夏被胡裘、冬著生葛，飽飲食已復數飲食，寒天遂冷、熱取煖等，此等皆名非時受用，衣服、飲食、冷、煖等事便能生苦，復成苦因。其衣服等雖依時用，此若過量受用便能生苦，復成苦因。不應樂因於增盛位過量受用，或雖平等不增不減，但由非時便成苦因，能生於苦。故知衣等本是苦因，苦微不覺，苦增盛時其相方顯乃覺苦也。

Regarding "Because the causes of pleasure... only then does its characteristic become evident": the other school responds with reason. Because all causes of pleasure are variable, this demonstrates there is no real pleasure. Namely, with regard to things such as clothing: if used according to the proper time and without excess, sentient beings accept them as causes of pleasure. If these are used out of season or excessively, they immediately give rise to suffering and again become causes of suffering. For example, wearing a fur robe in summer or unlined hemp in winter; eating again repeatedly when already sated with food and drink; seeking cold on a cold day, or seeking heat when hot; these are all called out-of-season consumption, and things like clothing, food, cold, and heat then give rise to suffering and become causes of suffering. Even if such clothing and the like are used at the proper time, if they are used excessively they immediately give rise to suffering and become causes of suffering. It is not appropriate that a cause of pleasure, at the stage of increase and excessive use, or even when balanced without increase or decrease, simply by being out of season becomes a cause of suffering and produces suffering. Therefore, we know that clothing and the like are fundamentally causes of suffering; when suffering is slight it is not perceived, and only when suffering increases and flourishes does its characteristic become evident, whereupon one perceives suffering.