The authenticity of the hadeeth about fighting the Jews
Question

                Is the hadeeth saheeh which says that there will come a day when the Muslims will be victorious over the Jews, so that a rock beneath which a Jew is hiding will call out, “There is a Jew underneath me, come and kill him”?
Praise be to Allah.It was narrated that Ibn ‘Umar (may Allaah be pleased with 
          him) said: “I heard the Messenger of Allaah  
          (peace and blessings of Allaah be upon him) say, ‘The Jews will fight 
          you and you will prevail over them, then a rock will say, “O Muslim, 
          here is a Jew behind me, (come and) kill him.”’” (Narrated by al-Bukhaari, 
          no. 3593). 
It was also narrated from Ibn ‘Umar (may Allaah be pleased 
          with him) that the Messenger of Allaah  
          (peace and blessings of Allaah be upon him) said. “The Jews will fight 
          you and you will prevail over them until a rock will say, “O Muslim, 
          here is a Jew behind me, (come and) kill him.”’” (narrated by Ahmad 
          and al-Tirmidhi, who said, this is a saheeh hasan hadeeth). 
And it was narrated that Ibn ‘Umar (may Allaah be pleased 
          with him) said: “I heard the Messenger of Allaah  
          (peace and blessings of Allaah be upon him) say: ‘The Dajjaal will come 
          down to this pond at Marriqanaat (a valley near Madeenah), and most 
          of those who go out to follow him will be women, such that a man will 
          go back to his wife, mother, daughter, sister or (paternal) aunt and 
          will tie them up lest they go out to join him. Then Allaah will grant 
          the Muslims victory over him, and they will kill him and his party, 
          until a Jew will hide beneath a tree or a rock, and the tree or rock 
          will say, ‘Here a Jew beneath me, (come and) kill him.’” (Narrated by 
          Ahmad in his Musnad). 
          This was also narrated by Ibn Maajah from Abu Umaamah al-Baahili from 
          the Prophet  (peace and blessings 
          of Allaah be upon him) concerning the Dajjaal. 
And Allaah is the Source of strength. May Allaah bless 
          our Prophet Muhammad and his family and companions, and grant them peace.