This is how the report appears in al-Bukhārī’s recension: a mursal transmission from ʿUrwah. Al-Bayhaqī has likewise recorded it (1) through the isnād of Yaḥyā ibn Saʿīd → Abū Usāmah → Hishām → his father, from ʿĀʾishah; he relates the narrative of the Hijrah and, at its end, inserts the very passage that al-Bukhārī cites here. Allah knows best.

Al-Wāqidī (2), via Muṣʿab ibn Thābit → Abū al-Aswad → ʿUrwah, also recounts the incident, mentioning the affair of ʿĀmir ibn Fuhayrah and ʿĀmir ibn al-Ṭufayl’s statement that ʿĀmir was lifted up to the heavens. He adds that the man who killed him was Jabbār ibn Sulmā al-Kilābī. When Jabbār thrust his spear into him, ʿĀmir exclaimed, “By the Lord of the Kaʿbah, I have triumphed!” Later Jabbār asked, “What did he mean by ‘I have triumphed’?” They replied, “He meant: by entering Paradise.” Jabbār said, “By Allah, he spoke the truth,” and he subsequently embraced Islam on that account.

In Mūsā ibn ʿUqbah’s Maghāzī (3) it is related from ʿUrwah that he said, “The body of ʿĀmir ibn Fuhayrah was never found; people believe that the angels buried him.”

Yūnus relates from Ibn Isḥāq (4): After the Battle of Uḥud the Messenger of Allah ﷺ remained (in Madinah) for the rest of Shawwāl, then the months of Dhu al-Qaʿdah, Dhu al-Ḥijjah, and Muḥarram. In Ṣafar, four months after Uḥud, he dispatched the expedition of Biʾr Maʿūnah. My father, Isḥāq ibn Yasār, told me from al-Mughīrah ibn ʿAbd al-Raḥmān ibn al-Ḥārith ibn Hishām, ʿAbd Allāh ibn Abī Bakr ibn Muḥammad ibn ʿAmr ibn Ḥazm, and other scholars: Abū Barāʾ ʿĀmir ibn Mālik ibn Jaʿfar—nicknamed Mulāʿib al-Asinnah (“the Javelin-Player”)—came to the Messenger of Allah ﷺ in Madinah. The Prophet invited him to Islam; he neither accepted nor rejected it and said, “O Muhammad, were you to send some of your Companions to the people of Najd to summon them to your matter, I would hope they would respond.” The Prophet ﷺ replied, “I fear for them the people of Najd.” Abū Barāʾ answered, “I guarantee their safety.”

Accordingly, the Messenger of Allah ﷺ sent al-Mundhir ibn ʿAmr of Banū Sāʿidah—known as “al-Muʿniq li-yamūt,” the one who races toward death—at the head of forty of his finest Companions. Among them were al-Ḥārith ibn al-Ṣimmah, Ḥarām ibn Milḥān of Banū ʿAdiyy ibn al-Najjār, ʿUrwah ibn Asmāʾ ibn al-Ṣalt al-Sulamī, Nāfiʿ ibn Budayl ibn Warqāʾ al-Khuzaʿī, and ʿĀmir ibn Fuhayrah, the freedman of Abū Bakr, together with other outstanding Muslims. They traveled until they encamped at Biʾr Maʿūnah, situated between the lands of Banū ʿĀmir and the lava plain of Banū Sulaym.

Once there, they sent Ḥarām ibn Milḥān with a letter from the Messenger of Allah ﷺ to the enemy of Allah, ʿĀmir ibn al-Ṭufayl. Without even glancing at the letter, ʿĀmir leapt upon the envoy and killed him. He then called upon Banū ʿĀmir to come to his aid, but they refused, saying, “We will not betray Abū Barāʾ; he has granted them a pact and protection.” ʿĀmir ibn al-Ṭufayl next appealed to the clans of Banū Sulaym—ʿUṣayyah, Riʿl, Dhakwān, and al-Qārah—and they answered his call. They set out, descended upon the Muslims, and surrounded them in their encampment. When the Muslims saw them, they drew their swords and fought the attackers until they were slain