瑜伽論記 11.114

11.114

漸次入饑饉中劫等者，當知今時已入三災之內。然未究竟，究竟饑災至三十歲時，病至二十歲時，刀兵要十歲時。

As for 'gradually entering the intermediate kalpa of famine,' etc.: it should be known that the present time has already entered within the three calamities. However, it has not yet reached the extreme: the calamity of famine reaches its extreme when [lifespan is] thirty years; pestilence when it is twenty years; weapons of warfare necessarily when it is ten years.