ذِكْرُ كَيْفِيَّةِ اجْتِمَاعِ الْقَاتِلِ الْكَافِرِ الْمُسْلِمَ فِي الْجَنَّةِ إِذَا سَدَّدَ
"The Messenger of Allah said: 'Allah will laugh at two persons- one of them kills the other, and both of them enter Paradise, for the first one fought in the cause of Allah and was martyred, then his killer repented to Allah and became Muslim, then he also fought in the cause of Allah and was martyred.'" (Using translation from Ibn Mājah 191)
قَالَ رَسُولُ اللَّهِ ﷺ «إِنَّ اللَّهَ لَيَضْحَكُ إِلَى رَجُلَيْنِ يَقْتُلُ أَحَدُهُمَا صَاحِبَهُ وَكِلَاهُمَا يَدْخُلُ الْجَنَّةَ يُقَاتِلُ هَذَا فِي سَبِيلِ اللَّهِ فَيُقْتَلُ ثُمَّ يَتُوبُ اللَّهُ عَلَى الْقَاتِلِ فَيُقَاتِلُ فِي سَبِيلِ اللَّهِ فَيُسْتَشْهَدُ»