Exodus 7:28
And the river shall bring forth tzefardaya abundantly, which shall go up and come into thine bais, and into thy cheder mishkav, and upon thy bed, and into the bais of thy avadim, and upon thy people, and into thine ovens, and into thy kneading bowls:
Orthodox Jewish Bible
In Context
27And if thou refuse to let them go, hinei, I will strike all thy borders with tzefardaya:
29And the tzefardaya shall come up both on thee, and upon thy people, and upon all thy avadim.