佛祖統紀 30.29

30.29

Decreasing to seventy-eight years, [the world] enters eight hundred years into the Semblance Dharma. This corresponds to the lifespan precisely obtaining at present (reckoning by the benchmark of 2,200 years since the Buddha's nirvāṇa, it should decrease by twenty-two years, which corresponds to the eleventh year of the Chunyou reign of Emperor Lizong).