Sahih Muslim
Sahih Muslim 1890a
حَدَّثَنَا مُحَمَّدُ بْنُ أَبِي عُمَرَ الْمَكِّيُّ، حَدَّثَنَا سُفْيَانُ، عَنْ أَبِي الزِّنَادِ، عَنِ الأَعْرَجِ، عَنْ أَبِي هُرَيْرَةَ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ " يَضْحَكُ اللَّهُ إِلَى رَجُلَيْنِ يَقْتُلُ أَحَدُهُمَا الآخَرَ كِلاَهُمَا يَدْخُلُ الْجَنَّةَ " . فَقَالُوا كَيْفَ يَا رَسُولَ اللَّهِ قَالَ " يُقَاتِلُ هَذَا فِي سَبِيلِ اللَّهِ عَزَّ وَجَلَّ فَيُسْتَشْهَدُ ثُمَّ يَتُوبُ اللَّهُ عَلَى الْقَاتِلِ فَيُسْلِمُ فَيُقَاتِلُ فِي سَبِيلِ اللَّهِ عَزَّ وَجَلَّ فَيُسْتَشْهَدُ " .
Muhammad ibn Abi Umar al-Makki narrated to us; Sufyan narrated to us, from Abu al-Zinad, from al-Araj, from Abu Hurayrah, that the Messenger of Allah, peace and blessings be upon him, said: “Allah laughs at two men, both of whom enter Paradise, though one killed the other.” They asked, “How is that, Messenger of Allah?” He said: “One of them fights in the path of Allah, Mighty and Majestic, and is martyred. Then Allah accepts the repentance of the killer; he embraces Islam, fights in the path of Allah, Mighty and Majestic, and is martyred.”