Sahih al-Bukhari, Hadith 2925 ⓘ
Narrated `Abdullah bin `Umar: Allah's Messenger said, "You (i.e. Muslims) will fight with the Jews until 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.'"
حَدَّثَنَا إِسْحَاقُ بْنُ مُحَمَّدٍ الْفَرْوِيُّ، حَدَّثَنَا مَالِكٌ، عَنْ نَافِعٍ، عَنْ عَبْدِ اللَّهِ بْنِ عُمَرَ ـ رضى الله عنهما ـ أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ " تُقَاتِلُونَ الْيَهُودَ حَتَّى يَخْتَبِيَ أَحَدُهُمْ وَرَاءَ الْحَجَرِ فَيَقُولُ يَا عَبْدَ اللَّهِ هَذَا يَهُودِيٌّ وَرَائِي فَاقْتُلْهُ " .
also referenced under: Book 56, Hadith 138 (In-Book) & Volume 4, Book 52, Hadith 176 (USC-MSA)