During a Friday sermon delivered at Al-Huda Mosque in Port Said, Egyptian cleric Sheikh Mansour Riadh recounted an antisemitic hadith, according to which on Judgment Day, the trees and stones would tell the Muslims to come and kill the Jews hiding behind them. Riadh said that during the Egyptian-Israeli negotiations, Moshe Dayan had confirmed the hadith, saying: "Your Prophet spoke the truth, but this will only happen when you are true Muslims." The sermon was posted on the Internet on January 30, 2016.
Following are excerpts
Mansour Riadh: [According to a hadith],the Prophet Muhammad said: "Judgment Day will not come before the Muslims fight the Jews, and the Muslims will kill them, and the Jews will hide behind the stones and the trees, and the trees and the stones will say to the Muslims: Oh Muslim, oh servant of Allah, there is a Jew behind me. Come and kill him." This is what the Prophet Muhammad said. "There is a Jew behind me. Come and kill him." The Prophet Muhammad said that the gharqad tree would be the only exception, because it is one of the trees of the Jews.
[In 1973], their minister of defense was a man called Moshe Dayan. In the days of the [Israeli-Egyptian] reconciliation, when Egyptians would go to Palestine and Israelis would come to Egypt for talks, an Egyptian politician said jokingly to Moshe Dayan: "Our Prophet told us that we would fight you, "Our Prophet told us that we would fight you, and that the stones would speak and say: Oh Muslim, oh servant of Allah, there is a Jew behind me. Come and kill him." Oh servants of Allah, what did the [Israeli] defense minister tell him? By Allah, this was published in the newspapers at the time. He said: "Your prophet spoke the truth, but this will only happen when you are true Muslims."
This is why they plant the gharqad tree. It's in keeping with the prophecy. They plant it all over.