佛祖統紀 30.18

30.18

第二小劫（減增）時光音諸天。來生梵世者。為梵輔天（壽四十小劫。即是自成劫第二增減劫。至第一增減劫時沒）。

The second small kalpa (decreasing and increasing). At that time, the various gods of the Ābhāsvara Heaven who came to be born in the Brahmā world became the Brahmā-purohita gods (their lifespan is forty small kalpas; that is, they pass away between the second kalpa of increase and decrease of the kalpa of formation and the first kalpa of increase and decrease).