וְהַדָּגָ֧ה אֲשֶׁר־בַּיְאֹ֛ר תָּמ֖וּת וּבָאַ֣שׁ הַיְאֹ֑ר וְנִלְא֣וּ מִצְרַ֔יִם לִשְׁתּ֥וֹת מַ֖יִם מִן־הַיְאֹֽר׃ (ס)
And the fish that are in the river shall die, and the river shall become foul; and the Egyptians shall loathe to drink water from the river.’
Exodus
And if they will not believe even these two signs, and they will not listen to your voice, then you shall take from the water of the river and pour it on the dry land. The water that you will take from the river will turn into blood on the dry land.”