Sahih Muslim
The Book Pertaining to the Turmoil and Portents of the Last Hour (Kitab Al-Fitan wa Ashrat As-Saah)
Book Number: 041 / Hadith Number: 6983
Abdullah b. 'Umar reported Allah's Messenger (may peace be upon him) as saying: You and the Jews would fight against one another until a stone would say: Muslim, here is a Jew behind me; come and kill him.