When two Muslims confront one another with their swords
حَدَّثَنَا سُوَيْدُ بْنُ سَعِيدٍ، حَدَّثَنَا مَرْوَانُ بْنُ مُعَاوِيَةَ، عَنْ عَبْدِ الْحَكَمِ السَّدُوسِيِّ، حَدَّثَنَا شَهْرُ بْنُ حَوْشَبٍ، عَنْ أَبِي أُمَامَةَ، أَنَّ رَسُولَ اللَّهِ ـ صلى الله عليه وسلم ـ قَالَ " مِنْ شَرِّ النَّاسِ مَنْزِلَةً عِنْدَ اللَّهِ يَوْمَ الْقِيَامَةِ عَبْدٌ أَذْهَبَ آخِرَتَهُ بِدُنْيَا غَيْرِهِ " .
It was narrated from Abu Umamah that the Messenger of Allah (ﷺ) said: “Among the worst people in status before Allah on the Day of Resurrection will be a person who loses his Hereafter for the sake of this world.”