增壹阿含經 24.5.p35

24.5.p35

“What’s called the truth of suffering? It’s the suffering of birth, suffering of old age, suffering of illness, suffering of death, suffering of sorrow, and suffering of grief, which cannot be described. It’s also the suffering of association with what’s disliked, suffering of separation from what’s liked, and the suffering of not getting what’s desired. Essentially speaking, it’s the suffering of the five proliferating aggregates. This is called the truth of suffering.