Sunan an-Nasa'i, Hadith 4132 ⓘ
It was narrated that Jarir bin 'Abdullah said: "The Messenger of Allah [SAW] said to me: 'Ask the people to be quiet and listen.' Then he said: 'I do not want to see you after I am gone reverting to disbelievers, striking the necks of one another (killing one another).'"
أَخْبَرَنَا أَبُو عُبَيْدَةَ بْنُ أَبِي السَّفَرِ، قَالَ حَدَّثَنَا عَبْدُ اللَّهِ بْنُ نُمَيْرٍ، قَالَ حَدَّثَنَا إِسْمَاعِيلُ، عَنْ قَيْسٍ، قَالَ بَلَغَنِي أَنَّ جَرِيرَ بْنَ عَبْدِ اللَّهِ، قَالَ قَالَ لِي رَسُولُ اللَّهِ صلى الله عليه وسلم " اسْتَنْصِتِ النَّاسَ " . ثُمَّ قَالَ " لاَ أُلْفِيَنَّكُمْ بَعْدَ مَا أَرَى تَرْجِعُونَ بَعْدِي كُفَّارًا يَضْرِبُ بَعْضُكُمْ رِقَابَ بَعْضٍ " .
also referenced under: Book 37, Hadith 167 (In-Book) & Volume 5, Book 37, Hadith 4137 (DarusSalam)