In Arufumi Vol. 2 (supplement volumes of explanatory notes in Nihonshoki), just before Izanami's death after giving birth to Kagutsuchi, she produced Haniyama-hime, the god of soil; Wakumusubi was born between Haniyama-hime and Kagutsuchi.
日本書紀の第二の一書では、伊邪那美命が軻遇突智（カグツチ）を生んだことによって死ぬ間際に土の神・埴山媛（ハニヤマヒメ）を生み、埴山媛と軻遇突智の間に稚産霊神が生まれたとする。