Hadith 2925
Narrated `Abdullah bin `Umar: Allah's Apostle said, "You (i.e. Muslims) will fight wi the Jews till some of them will hide behind stones. The stones will (betray them) saying, 'O `Abdullah (i.e. slave of Allah)! There is a Jew hiding behind me; so kill him.' "
Hadith 2926
Narrated Abu Huraira: Allah's Apostle said, "The Hour will not be established until you fight with the Jews, and the stone behind which a Jew will be hiding will say. "O Muslim! There is a Jew hiding behind me, so kill him."