長阿含經 17.p79

17.p79

“When past lives are false, unreal, not worth enjoying, or aren’t beneficial, the Buddha doesn’t relate them. If past lives are real but aren’t worth enjoying or beneficial, the Buddha doesn’t relate them. If past lives are real and worth enjoying but aren’t beneficial, the Buddha doesn’t relate them, either. If past lives are real, worth enjoying, and beneficial, the Tathāgata entirely knows them and relates them afterward. The future and present are likewise.