Ok, but can you refute this
"Ibn `Abbas and others from among the Salaf have said: "Some of the Children of Israel doubted the death of Fir`awn so Allah commanded the sea to throw his body -- whole, without a soul -- with his known armor plate. The body was thrown to a high place on the land so that the Children of Israel could confirm his death and destruction."
"According to Ibn ‘Abbās, 'some of the Children of Israel doubted his death and so he was brought out [of the sea] for them to see.' "
"First and foremost, the proof would be given to the children of Israel, and serve as a sign that Islam's "Allah" is God, and he was the one who drowned Pharaoh. This will apparently also serve as a sign that Allah will destroy the Jews for their disbelief in him. For the prophetic claim to say it would be a “sign for future generations” is incorrect, as its clearly only for the “children of Israel” (the Jews). The tafsir's also make it clear that this was (allegedly) an historic event in that it already happened before being recorded in the Qur'an. A party of the Jews disbelieved, so Allah threw Pharaoh's body up THEN and they saw it. Kathir et al also make it clear that this Pharaoh would be accompanied by an identifying item - usually mentioned as a breastplate so that positive identification could be assured.
There's a lot of "if's" and “maybe's” in the author's alleged prophecy, but let's say its all true. That would mean the identifying breastplate would be with Pharaoh. Where is it, and how do we know what Pharaoh's breastplate looked like, in order to verify this claim? This theory doesn't hold water due to this fact, and that Allah forgot to tell us (and the Jews) about the specifics.
The claim that “Pharaoh” is on display in the royal mummies chamber of the Egyptian museum in Cairo is also highly suspect. The author appears to be saying that this Pharaoh has been positively identified as being that of the Pharaoh who drowned in the Red sea. If so, where is the information to confirm this? Or is it true that the author didn't realize that "Pharaoh" was the title of the reigning leaders of Egypt, like the title "King" or "Queen".
There were many Pharaoh's, and if the author is asserting that all it takes for Allah's prediction to be true is for a mummified Pharaoh to be found, then 'Allah' may have 'drowned' hundreds and hundreds of Pharaohs, because this is a very broad definition.
Last but not least is the claim that the evidence of Pharaoh's mummified body would (or did) serve as evidence to the Jews of God's existence. After all, Exodus contains the story of the Egyptian army drowning in the Red sea after the Israelites had safely passed through. If they have the same recounting of events, including the drowning of the Egyptian army, then why would evidence of what they already believe be proof enough to convince them (or anyone) that Islam's "Allah" is God?