Virtues and Merits of the Prophet (pbuh) and his Companions

Bukhari :: Book 4 :: Volume 56 :: Hadith 791

Narrated 'Abdullah bin 'Umar:

I heard Allah's Apostle saying, "The Jews will fight with you, and you will be given victory over them so that a stone will say, 'O Muslim! There is a Jew behind me; kill him!' "