瑜伽論記 1.437

1.437

Dharma Master Jing says: 'Among the intermediate kalpas of the formation kalpa, one kalpa forms the receptacle world, and the subsequent nineteen kalpas gradually disperse sentient beings until the dwelling places of the five destinies are completely filled. The lifespan of humans in Jambudvīpa is immeasurable, without having decreased by a single fraction. At that time, it is classified as the nineteenth kalpa of the formation kalpa. From the gradual decrease of the immeasurable lifespan down to just before reaching eighty thousand years, it belongs to the twentieth kalpa of formation. From the gradual decrease from eighty thousand years down to ten years, it belongs to the first dwelling kalpa among the twenty dwelling kalpas.'