Salama bin Akwa reported,

He mentioned a long hadith in which he said, By Allah, we had not stayed more than three nights before we set out for Khaybar with the Messenger of Allah ﷺ.He said, My uncle Amir began chanting rajaz verses to the men,By Allah, were it not for Allah, we would not have been guided, nor given charity, nor prayed. We have no escape from Your favor. So make our feet firm if we meet the enemy, and send down tranquility upon us.The Messenger of Allah ﷺ asked, "Who is this?"Someone replied, "It is Amir."He said, "May your Lord forgive you."Salama said, The Messenger of Allah ﷺ never singled out a man with a prayer for forgiveness without that man attaining martyrdom.Then Umar bin Khattab called out from atop his camel, "Prophet of Allah, if only you had let us enjoy Amir's company longer."When we reached Khaybar, their king Marhab came out swinging his sword and saying,Khaybar knows well that I am Marhab, fully armed, a tested warrior, when wars come blazing.My uncle Amir came forward to face him and said,Khaybar knows well that I am Amir, fully armed, a daring warrior.They exchanged two strikes, and Marhab's sword struck Amir's shield. Amir went low to strike him from beneath, but his own sword swung back upon him and severed the artery in his arm, and that was the end of him.Salama said, I went out and found a group of the Prophet's ﷺ companions saying, "Amir's deeds have come to nothing. He has killed himself."I came to the Prophet ﷺ weeping and said, "Messenger of Allah, have Amir's deeds come to nothing?"The Messenger of Allah ﷺ asked, "Who said that?"I replied, "Some of your companions."He said, "Whoever said that has lied. Rather, he has a double reward."Then he sent me to Ali, who was suffering from inflamed eyes, and said, "I will give the banner to a man who loves Allah and His Messenger, or whom Allah and His Messenger love."So I went to Ali and brought him, leading him by the hand, for his eyes were inflamed, until I brought him to the Messenger of Allah ﷺ. He spat lightly into Ali's eyes, and they were healed. He gave him the banner.Marhab came out and said,Khaybar knows well that I am Marhab, fully armed, a tested warrior, when wars come blazing.Ali responded,I am the one whose mother named him Haydara, like a lion of the forests, fearsome of aspect. I give them their full measure, the measure of the sandara.Then he struck Marhab on the head and killed him, and the conquest was achieved at his hands.

Azami 9044

Sahih

عن سلمة بن الأكوع قال

فذكر حديثا طويلا وفيه: فوالله! ما لبثنا إلا ثلاث ليال حتى خرجنا إلى خيبر مع رسول الله ﷺ. قال: فجعل عمي عامر يرتجز بالقوم: تالله لولا الله ما اهتدينا ولا تصدقنا ولا صلينا ونحن عن فضلك ما استغنينا فثبت الأقدام إن لاقينا وأنزلن سكينة علينا فقال رسول الله ﷺ: من هذا؟ قال: أنا عامر. قال: غفر لك ربك قال: وما استغفر رسول الله ﷺ الإنسان يخصه إلا استشهد. قال: فنادى عمر بن الخطاب، وهو على جمل له: يا نبي الله! لولا ما متعتنا بعامر. قال: فلما قدمنا خيبر قال: خرج ملكهم مرحب يخطر بسيفه ويقول: قد علمت خيبر أني مرحب شاكي السلاح بطل مجرب إذا الحروب أقبلت تلهب قال: وبرز له عمي عامر، فقال: قد علمت خيبر أني عامر شاكي السلاح بطل مغامر قال: فاختلفا ضربتين فوقع سيف مرحب في ترس عامر. وذهب عامر يسفل له. فرجع سيفه على نفسه فقطع أكحله. فكانت فيها نفسه. قال سلمة: فخرجت فإذا نفر من أصحاب النبي ﷺ يقولون: بطل عمل عامر قتل نفسه. قال: فأتيت النبي ﷺ وأنا أبكي. فقلت: يا رسول الله! بطل عمل عامر؟ قال رسول الله ﷺ: من قال ذلك؟ قال: قلت: ناس من أصحابك. قال: كذب من قال ذلك. بل له أجره مرتين. ثم أرسلني إلى علي وهو أرمد. فقال: لأعطين الراية رجلا يحب الله ورسوله، أو يحبه الله ورسوله قال: فأتيت عليا فجئت به أقوده، وهو أرمد حتى أتيت به رسول الله ﷺ. فبسق في عينيه فبرأ. وأعطاه الراية. وخرج مرحب فقال: قد علمت خيبر أني مرحب شاكي السلاح بطل مجرب إذا الحروب أقبلت تلهب فقال علي: أنا الذي سمتني أمي حيدره كليث الغابات كريه المنظره أوفيهم بالصاع كيل السندره قال: فضرب رأس مرحب فقتله. ثم كان الفتح على يديه.

الأعظمي 9044صحيح
Contents
Reference
Commentary
Ayat
Collection
Jami al-Kamil
Book
Biography of the Prophet ﷺ
Chapter
Expedition of Khaybar
Section
Ali bin Abu Talib killed Marr the Jew
Numbering
Jami al-Kamil 9044 (2nd edition)