"Allah, the Mighty and Sublime, likes it when there are two men, one of whom killed the other, then they both enter Paradise." And another time he said: "He laughs at two men, one of whom killed the other, then they both entered Paradise." (Using translation from Nasāʾī 3165)  

عَنِ النَّبِيِّ ﷺ قَالَ «إِنَّ اللهَ يَتَعَجَّبُ مِنْ رَجُلَيْنِ يَقْتُلُ أَحَدُهُمَا صَاحِبَهُ» وَقَالَ مَرَّةً أُخْرَى «لَيَضْحَكُ مِنْ رَجُلَيْنِ يَقْتُلُ أَحَدُهُمَا صَاحِبَهُ ثُمَّ يَدْخُلَانِ الْجَنَّةَ»