Sahih Muslim Book 041, Hadith Number 6981.

Chapter : The Last Hour would not come until a person would pass by a grave and wish that he should have been the occupant of that grave because of this calamity.

Ibn 'Umar reported Allah's Messenger (may peace be upon him) as saying: You will fight against the Jews and you will kill them until even a stone would say: Come here, Muslim, there is a Jew (hiding himself behind me); kill him.