[Machine] "He heard the Messenger of Allah ﷺ say, 'The Hour will not be established until two great groups fight each other, whose call is one and the same. There will be a dissenter who will pass between them, and they will both kill him according to the truth.'"  

أَنَّهُ سَمِعَ رَسُولَ اللهِ ﷺ يَقُولُ لَا تَقُومُ السَّاعَةُ حَتَّى يَقْتَتِلَ فِئَتَانِ عَظِيمَتَانِ دَعْوَاهُمَا وَاحِدَةٌ تَمْرُقُ بَيْنَهُمَا مَارِقَةٌ يَقْتُلُهَا أَوْلَاهُمَا بِالْحَقِّ  

The last Hour will not come until the two parties (of Muslims) confront each other and there is a large-scale massacre amongst them and the claim of both of them is the same. (Using translation from Muslim 157i)   

وَقَالَ رَسُولُ اللَّهِ ﷺ «لَا تَقُومُ السَّاعَةُ حَتَّى تَقْتَتِلَ فِئَتَانِ عَظِيمَتَانِ بَيْنَهُمَا مَقْتَلَةٌ عَظِيمَةٌ دَعْوَاهُمَا وَاحِدَةٌ»  

"لاَ تَقُومُ السَّاعَةُ حَتَّى تَقْتَتِلَ فِئَتَان عَظِيمَتَانِ دَعْوَاهُمَا وَاحِدَةٌ، يَمْرُقُ بَيْنَهُمَا مَارِقَةٌ (يَقْتُلُهَا) أوْلى الطَّائِفَتَيْنِ بِالحَقِّ" وفى لفظ: "يَقْتُلُهَا أقْرَبُ الطَّائِفَتَينِ إِلَى الله".