ذِكْرُ الْبَيَانِ بِأَنَّ اللَّهَ جَلَّ وَعَلَا، قَدْ يَجْمَعُ فِي الْجَنَّةِ بَيْنَ الْمُسْلِمِ وَقَاتِلِهِ مِنَ الْكُفَّارِ، إِذْ سَدَّدَ بَعْدَ ذَلِكَ وَأَسْلَمَ
"Allah laughs at two men, one of whom killed the other but they both entered Paradise. The first one fought in the cause of Allah and was killed, then Allah accepted the repentance of the one who killed him, and he fought and was martyred." (Using translation from Nasāʾī 3166)
قَالَ رَسُولُ اللَّهِ ﷺ «يَضْحَكُ اللَّهُ إِلَى رَجُلَيْنِ يَقْتُلُ أَحَدُهُمَا الْآخَرَ وَكِلَاهُمَا يَدْخُلُ الْجَنَّةَ يُقَاتِلُ فِي سَبِيلِ اللَّهِ فَيُقْتَلُ ثُمَّ يَتُوبُ اللَّهُ عَلَى الْقَاتِلِ فَيُقَاتِلُ فِي سَبِيلِ اللَّهِ فَيُسْتَشْهَدُ»