On the day of Khaybar, my brother fought fiercely alongside the Messenger of Allah ﷺ, but his own sword rebounded upon him and killed him. The companions of the Messenger of Allah ﷺ spoke about this and had doubts concerning him, saying he was a man who died by his own weapon, and they were uncertain about his standing.Salama said, "When the Messenger of Allah ﷺ returned from Khaybar, I said, 'Messenger of Allah, give me permission to chant some verses for you.'"The Messenger of Allah ﷺ gave him permission, but Umar bin Khattab said, "Be mindful of what you say."Salama said, "I recited, 'By Allah, had it not been for Allah we would not have been guided, nor would we have given charity, nor would we have prayed.'"The Messenger of Allah ﷺ said, "You have spoken the truth.""So send down tranquility upon us, and make our feet firm if we meet the enemy, for the polytheists have transgressed against us."When I finished my verses, the Messenger of Allah ﷺ asked, "Who composed this?"I said, "My brother composed it."The Messenger of Allah ﷺ said, "May Allah have mercy on him."I said, "Messenger of Allah, some people are reluctant to pray over him, saying he was a man who died by his own weapon."The Messenger of Allah ﷺ said, "He died striving and as a warrior in the cause of Allah."Ibn Shihab said, "Then I asked..."
و حدثني أبو الطاهر أخبرنا ابن وهب أخبرني يونس عن ابن شهاب أخبرني عبد الرحمن ونسبه غير ابن وهب فقال ابن عبد الله بن كعب بن مالك أن
لما كان يوم خيبر قاتل أخي قتالا شديدا مع رسول الله ﷺ فارتد عليه سيفه فقتله فقال أصحاب رسول الله ﷺ في ذلك وشكوا فيه رجل مات في سلاحه وشكوا في بعض أمره قال سلمة فقفل رسول الله ﷺ من خيبر فقلت يا رسول الله ائذن لي أن أرجز لك فأذن له رسول الله ﷺ فقال عمر بن الخطاب أعلم ما تقول قال فقلت والله لولا الله ما اهتدينا ولا تصدقنا ولا صلينا فقال رسول الله ﷺ صدقت وأنزلن سكينة علينا وثبت الأقدام إن لاقينا والمشركون قد بغوا علينا قال فلما قضيت رجزي قال رسول الله ﷺ من قال هذا قلت قاله أخي فقال رسول الله ﷺ يرحمه الله قال فقلت يا رسول الله إن ناسا ليهابون الصلاة عليه يقولون رجل مات بسلاحه فقال رسول الله ﷺ مات جاهدا مجاهدا قال ابن شهاب ثم سألت
Muslim narrated it from Abu Tahir, from Ibn Wahb, from Yunus, from Zuhri, who said, "Abdul-Rahman and Abdullah, the two sons of Kaab, informed me, from Salama bin Akwa, who said, 'On the day of Khaybar, my brother fought.'"It is said that Ibn Wahb erred in this. Qasim bin Mabrur contradicted him and narrated it from Yunus, from Zuhri, from Abdul-Rahman bin Kaab, from Salama, and that is the correct version. Likewise, more than one narrator reported it from Zuhri in this way.