《太平广记·卷四百七十四·昆虫二》
按照《神异秘经法》上说： 百年的蝙蝠，从人的口里，吸收人的精气，用来求得长生。
按《神异秘经法》云，百岁蝙蝠，于人口上，服人精气，以求长生。
The Divine and Secret Classic Method says that: Hundred-year-old bats absorb people's qi from people's mouths in order to gain longevity.