What did Pharaoh command his people to do with every son born to the Hebrews?

Answer: Throw him into the Nile

"Every son born to the Hebrews you must throw into the Nile, but every daughter you may allow to live" (KJV: "cast into the river").

“Then Pharaoh commanded all his people: “Every son born to the Hebrews you must throw into the Nile, but every daughter you may allow to live.””— Exodus 1:22 (BSB)