Oyamatsumi said, 'I offered my two daughters together because I made a covenant that the son of Amatsukami (god of heaven) (Ninigi) will have a life as eternal as a rock if you have Iwanaga-hime as your wife, and if you have Konohana no sakuya-bime as your wife then you will prosper just like flowers blossoming on a tree. However, because you married only Konohana no sakuya-bime the life of the son of Amatsukami will be ephemeral like flowers on a tree.'
オオヤマツミは「私が娘二人を一緒に差し上げたのは、イワナガヒメを妻にすれば天津神の御子（ニニギ）の命は岩のように永遠のものとなり、コノハナノサクヤビメを妻にすれば木の花が咲くように繁栄するだろうと誓約を立てたからである。コノハナノサクヤビメだけと結婚したので、天津神の御子の命は木の花のようにはかなくなるだろう」と言った。