One enters Hellfire if he dies while intending to kill the other

I went to help that man (i.e., ʿAli), and on the way I met Abu Bakra who asked me, "Where are you going?" I replied, "I am going to help that man." He said, "Go back, for I heard Messenger of Allah ﷺ saying, 'If two Muslims meet each other with their swords then (both) the killer and the killed one are in the (Hell) Fire.' I said, 'O Messenger of Allah ﷺ! It is alright for the killer, but what about the killed one?' He said, 'The killed one was eager to kill his opponent."

ذَهَبْتُ لأَنْصُرَ هَذَا الرَّجُلَ فَلَقِيَنِي أَبُو بَكْرَةَ فَقَالَ: أَيْنَ تُرِيدُ؟ قُلْتُ: أَنْصُرُ هَذَا الرَّجُلَ۔ قَالَ: ارْجِعْ، فَإِنِّي سَمِعْتُ رَسُولَ اللَّهِ ﷺ يَقُولُ: «إِذَا الْتَقَى الْمُسْلِمَانِ بِسَيْفَيْهِمَا فَالْقَاتِلُ وَالْمَقْتُولُ فِي النَّارِ۔» قُلْتُ: يَا رَسُولَ اللَّهِ، هَذَا الْقَاتِلُ، فَمَا بَالُ الْمَقْتُولِ؟ قَالَ: «إِنَّهُ كَانَ حَرِيصًا عَلَى قَتْلِ صَاحِبِهِ۔»

I set out with the intention of helping this person (Hadrat 'Ali) when Abu Bakra met me. He said: Ahnaf, where do you intend to go? I said: I intend to help the cousin of Messenger of Allah ﷺ, viz. 'Ali. Thereupon he said to me: Ahnaf, go back, for I heard Messenger of Allah ﷺ as saying: When two Muslims confront one another with swords (in hand) both the slayer and the slain would be in Fire. He (Ahnaf) said: I said, or it was said: Messenger of Allah, it may be the case of one who kills. but what about the slain (why he would be put in Hell-Fire)? Thereupon he said: He also intended to kill his companion.

خَرَجْتُ وَأَنَا أُرِيدُ هَذَا الرَّجُلَ فَلَقِيَنِي أَبُو بَكْرَةَ فَقَالَ أَيْنَ تُرِيدُ يَا أَحْنَفُ قَالَ قُلْتُ أُرِيدُ نَصْرَ ابْنِ عَمِّ رَسُولِ اللَّهِ ﷺ يَعْنِي عَلِيًّا قَالَ فَقَالَ لِي يَا أَحْنَفُ ارْجِعْ فَإِنِّي سَمِعْتُ رَسُولَ اللَّهِ ﷺ يَقُولُ إِذَا تَوَاجَهَ الْمُسْلِمَانِ بِسَيْفَيْهِمَا فَالْقَاتِلُ وَالْمَقْتُولُ فِي النَّارِ قَالَ فَقُلْتُ أَوْ قِيلَ يَا رَسُولَ اللَّهِ هَذَا الْقَاتِلُ فَمَا بَالُ الْمَقْتُولِ قَالَ إِنَّهُ قَدْ أَرَادَ قَتْلَ صَاحِبِهِ

I came out with the intention of (participating in) fighting. Abu Bakrah met me and said: Go back, for I heard the Messenger of Allah ﷺ say: When two Muslims face each other with their swords, the killer and the slain will go to Hell. He asked: Messenger of Allah, this is the killer (so naturally he should go to Hell), but what is the matter with the slain ? He replied: He intended to kill his companion.

خَرَجْتُ وَأَنَا أُرِيدُ يَعْنِي فِي الْقِتَالِ فَلَقِيَنِي أَبُو بَكْرَةَ فَقَالَ ارْجِعْ فَإِنِّي سَمِعْتُ رَسُولَ اللَّهِ ﷺ يَقُولُ إِذَا تَوَاجَهَ الْمُسْلِمَانِ بِسَيْفَيْهِمَا فَالْقَاتِلُ وَالْمَقْتُولُ فِي النَّارِ قَالَ يَا رَسُولَ اللَّهِ هَذَا الْقَاتِلُ فَمَا بَالُ الْمَقْتُولِ قَالَ إِنَّهُ أَرَادَ قَتْلَ صَاحِبِهِ

“When two Muslims confront one another with their swords, both the killer and the slain will be in Hell.” They said: “O Messenger of Allah, (we understand about) this killer, but what is wrong with the one who is slain?” He said: “He wanted to kill his companion.’”

قَالَ رَسُولُ اللَّهِ ﷺ إِذَا الْتَقَى الْمُسْلِمَانِ بِسَيْفَيْهِمَا فَالْقَاتِلُ وَالْمَقْتُولُ فِي النَّارِ قَالُوا يَا رَسُولَ اللَّهِ هَذَا الْقَاتِلُ فَمَا بَالُ الْمَقْتُولِ قَالَ إِنَّهُ أَرَادَ قَتْلَ صَاحِبِهِ

“When two Muslims confront one another with their swords, both the killer and the slain will be in Hell.” They said: “O Messenger of Allah, (we understand about) this killer, but what is wrong with the one who is slain?” He said: “He wanted to kill his companion.’” (Using translation from Ibn Mājah 3964)

"إِذا الْتقى المسلمانِ بسيفيهما فَقَتَل أحدُهما صاحبَه -فالقاتلُ والمقتولُ في النارِ- قيل يا رسول الله هَذَا القاتلُ- فما بَالُ المقتولِ؟ قال إنَّه كانَ حريصًا على قتلِ صاحبِه" .