Arabic Text
حَدَّثَنَا الْحَكَمُ بْنُ نَافِعٍ، حَدَّثَنَا شُعَيْبٌ، عَنِ الزُّهْرِيِّ، قَالَ أَخْبَرَنِي أَبُو سَلَمَةَ، أَنَّ أَبَا هُرَيْرَةَ ـ رضى الله عنه ـ قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " لاَ تَقُومُ السَّاعَةُ حَتَّى يَقْتَتِلَ فِئَتَانِ دَعْوَاهُمَا وَاحِدَةٌ ".
English Translation
Narrated Abu Huraira: Allah's Apostle said, "The Day of (Judgment) will not be established till there is a war between two groups whose claims (or religion) will be the same."
This hadith is from Sahih al-Bukhari, the most rigorously authenticated collection in Islamic scholarship. No editorial opinion is added.