Translation:

9. The wife of Pharaoh said: "(Here is) a joy of the eye for me and for thee: slay him not. It may be that he will be of use to us or we may adopt him as a son." And they perceived not (what they were doing)!

Notes (Tafseer)

3335. He was a darling to look at, and Pharaoh had apparently no son, but only a daughter, who afterwards shared his throne. This is on the supposition that the Pharaoh was Thothmes.

3336. In all life Providence so orders things that Evil is defeated by its own weapons. Not only is it defeated, but it actually, though unwittingly, advances the cause of Good!