Reference for Exodus 7:25

וַיִּמָּלֵ֖א שִׁבְעַ֣ת יָמִ֑ים אַחֲרֵ֥י הַכּוֹת־יְהוָ֖ה אֶת־הַיְאֹֽר׃ (פ)

And seven days were fulfilled, after that the LORD had smitten the river.

BDB

BDB