長阿含經 7.p48

7.p48

Kāśyapa answered, “A century here is exactly one day and night in the Trāyastriṃśa Heaven. Thirty days makes one month, and twelve months makes a year there. Thus, those gods live for thousands of years. How is it, priest? That relative you knew who completed the five precepts was surely born up in the Trāyastriṃśa Heaven when their body broke up and their life ended. After being born there, they would have thought, ‘It’s only been two or three days since I was born here. I’ll enjoy it and entertain myself. Afterward, I’ll go down and tell him about it.’ Would they see you?”