《三国志·魏书·乌丸鲜卑东夷传》
这个国家东部有个巨大的洞穴，叫隧穴。十月份国中召集大会，迎接隧神，在国东部祭祀，在神座上放置木隧。
其国东有大穴，名隧穴，十月国中大会；迎隧神还于国东上祭之，置木隧于神坐。
There was a huge cave in the east of the country called the "tunnel cave." In October, the country held a meeting to welcome the tunnel god. They held a sacrifice in the east of the country and placed a wooden tunnel on the altar.