with the sword. The Messenger of Allah, peace and blessings be upon him, said: "Your brother, O company of Muslims." So the people rushed toward him and found that he had died. The Messenger of Allah, peace and blessings be upon him, wrapped him in his clothes and his blood, prayed over him, and buried him. They said: "O Messenger of Allah, is he a martyr?" He said: "Yes, and I am a witness for him." (1)

40 - Chapter: Supplication at the Time of Encounter

2540 - Al-Hasan ibn 'Ali narrated to us, Ibn Abi Maryam narrated to us, Musa ibn Ya'qub al-Zama'i narrated to us, from Abu Hazim, from Sahl ibn Sa'd, who said: The Messenger of Allah, peace and blessings be upon him, said: "Two supplications are not rejected, or rarely are they rejected: supplication at the time of the call [to prayer], and at the time of battle when some engage others in combat."

Musa said: And Rizq ibn Sa'id ibn 'Abd al-Rahman narrated to me, from Abu Hazim, from Sahl ibn Sa'd, from the Prophet, peace and blessings be upon him, who said: "And during rain." (2)

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(1) Its chain is weak. Al-Walid - meaning Ibn Muslim al-Dimashqi, although he is trustworthy - practices tadlis of taswiyah (concealment of weak links), and he did not explicitly state hearing in any of the layers of the chain. Furthermore, Sallam ibn Abi Sallam, the father of Mu'awiyah, is unknown. However, in some copies of Abu Dawud from the narration of al-Lu'lu'i, Abu Dawud said after the hadith: "It is only Mu'awiyah, from his brother, from his grandfather." He said: "He is Mu'awiyah ibn Sallam ibn Abi Sallam." We say: Mu'awiyah's brother is Zayd ibn Sallam, who is trustworthy, but the suspicion of tadlis by al-Walid ibn Muslim remains, and Allah Almighty knows best.
It was also recorded by al-Bayhaqi 8/110 via the path of Abu Bakr ibn Dasah, from Abu Dawud al-Sijistani with this chain. He did not mention Abu Dawud's statement at its end.

(2) The hadith is authentic. This chain is good in follow-ups and supporting witnesses. Musa ibn Ya'qub al-Zama'i is weak but is considered, and he was followed up. Abu Hazim: he is Salamah ibn Dinar, and Ibn Abi Maryam: he is Sa'id ibn al-Hakam ibn Muhammad ibn Abi Maryam, and al-Hasan ibn 'Ali: he is al-Khallal.
It was also recorded by al-Darimi (1200), Ibn Abi 'Asim in "al-Ahad wa al-Mathani" (18), Ibn al-Jarud (1065), al-Ruyani in his "Musnad" (1046), Ibn Khuzaymah (419), al-Tabarani=