瑜伽論記 17.212

17.212

泰云：欲界有一分諸天及色無色界三地，名一向樂生，欲界一分天及人鬼畜生具受若樂報名雜生。

Tai says: A portion of the devas in the desire realm, as well as the three stages of the form and formless realms, are called births of sole pleasure. A portion of the devas in the desire realm, as well as humans, ghosts, and animals, who fully experience painful and pleasurable retribution, are called mixed births.