Exodus Chapter 7, Verse 18
From BibleWiki
18: And the fish that is in the river shall die, and the river
shall stink; and the Egyptians shall lothe to drink of the
water of the river.
18: And the fishes that are in the river, shall die, and the waters
shall be corrupted, and the Egyptians shall be afflicted when they drink
the water of the river.
18: And the fish that are in the river shall die, and the river shall stink thereupon, and the Egyptians shall not be able to drink water from the river.
Exodus Chapter 7, Verse 18/commentary

