I say: Hafs ibn Jamiʿ is weak, as stated in al-Taqrib.

2555 — “Whoever shoots an arrow in the path of Allah shall have a light on the Day of Resurrection.”

Al-Bazzar reported it in his Musnad (p. 183, its supplementary section): ʿAbd al-Rahman ibn al-Fadl ibn Muwaffaq narrated to us; Zayd ibn al-Hubab narrated to us; Humayd al-Makki—the freedman of Ibn ʿAlqamah—narrated to us, from ʿAtaʾ—that is, Ibn Abi Rabah—from Abu Hurayrah, who said: The Messenger of Allah ﷺ said—and he then cited it. He said: “Zayd alone narrated it from Humayd.”

I say: He is truthful and one of Muslim’s narrators. However, his Meccan shaykh, the freedman of Ibn ʿAlqamah—who is not Ibn Qays al-Aʿraj al-Makki—is unknown, as al-Hafiz stated. He is younger than al-Aʿraj, as al-Dhahabi said. It appears that al-Haythami mistakenly assumed him to be Ibn Qays, whose narrations are found in the two Sahihs, for he said in al-Majmaʿ (5/270): “Al-Bazzar reported it from his shaykh, ʿAbd al-Rahman ibn al-Fadl ibn Muwaffaq, whom I do not know; the rest of its narrators are narrators of the Sahih.”

Strangely, al-Hafiz Ibn Hajar endorsed him in this, for, following al-Bazzar’s preceding statement, he said: “The Shaykh said: Its narrators are narrators of the Sahih, apart from ʿAbd al-Rahman, and he is trustworthy!”

I say: I think that by “the Shaykh” he meant his own shaykh, al-Haythami. If so, then his statement concerning ʿAbd al-Rahman—“and he is trustworthy”—is problematic, for al-Haythami had said of him, as mentioned above: “I do not know him.” Ibn Hibban listed him among the trustworthy narrators (8/382) and said: “Al-Hadrami and the people of Iraq narrated from him.”

In sum, the chain of transmission of the hadith is weak, because Humayd al-Makki is unknown, as you have seen. Therefore, one should not be misled by al-Mundhiri’s statement (2/172):