The Prophet ﷺ allotted two shares each to two hundred horses on the day of Khaybar.
أن النبي ﷺ قسم لمائتي فرس يوم خيبر سهمين سهمين.
Bukhari narrated it in Tarikh al-Kabir (7/215), Daraqutni (4/103), Hakim (2/138), and Bayhaqi (6/326), all of them by way of Ibrahim bin Saad bin Ibrahim, from Kathir the freedman of Banu Makhzum, from Ataa, from Ibn Abbas, and he related it.Hakim said, "This is a hadith sahih according to the standard of Bukhari, though the two of them did not narrate it with this wording. Bukhari relied on Yahya bin Ayub and Kathir Makhzumi."I say, this is what he said, but he did not clarify who this Kathir Makhzumi is that Bukhari narrated from. Bukhari did include this hadith in the entry for Kathir the freedman of Banu Makhzum in Tarikh al-Kabir (7/215), but he did not mention any narrator from him other than Ibrahim bin Saad. Likewise, Ibn Abu Hatim gave him an entry in Jarh wa Tadil (7/160) and did not mention any narrator from him other than Ibrahim. I have not found anyone who confirmed his reliability, so he belongs among the unknown narrators.There is another route for it. Ishaq bin Rahawayh narrated it in his Musnad, as found in Nasb Raya (3/414), and Ibn Abu Shayba (33842), and from him Abu Yaala (2528), by way of Hajjaj, from Abu Salih, from Ibn Abbas, that the Messenger of Allah assigned the horseman three shares, one share for himself and two for his horse. The wording given is that of Ibn Abu Shayba. In its chain is Hajjaj, who is Ibn Artah, and he is a mudallis who narrated using ambiguous transmission wording.So the hadith, taking both routes together, rises to the level of hasan.A note, in the old printed edition of Daraqutni it reads "at Hunayn" instead of "at Khaybar," while in the Risala printing (4174) it reads "at Khaybar," as in most sources. In Tabarani's Kabir (11/192), from this same route, it reads, "he divided among eighty horses on the day of Hunayn, two shares each," which is an error.As for what has been narrated from Mujammi bin Jariya Ansari, who was one of the reciters who had memorized the Quran, he said, "We were present at Hudaybiya with the Messenger of Allah. When we turned back from there, the people suddenly began urging their camels forward hastily. Some of the people said to others, 'What is wrong with the people?' They said, 'Revelation has come down to the Messenger of Allah.' So we went out with the people, hurrying along, and we found the Prophet standing on his mount at Kuraa Ghameem. When the people had gathered around him, he recited to them, "Indeed, We have given you a clear victory" [Fath 48:1]. A man said, 'O Messenger of Allah, is it a victory?' He said, 'Yes, by the One in whose hand is the soul of Muhammad, it is indeed a victory.'Khaybar was then divided among the people of Hudaybiya. The Messenger of Allah divided it into eighteen hundred shares. The army numbered one thousand five hundred, among them three hundred horsemen. He gave the horseman two shares, and the foot soldier one share."Abu Dawud (2736), Ahmad (15470), Hakim (2/131), and Bayhaqi (6/325) narrated it by way of Mujammi bin Yaqub bin Mujammi bin Yazid Ansari, who said, "I heard my father Yaqub bin Mujammi mention, from his uncle Abdul-Rahman bin Yazid Ansari, from his uncle Mujammi bin Jariya Ansari," who related it.Hakim said, "This is a major hadith, sahih in its chain, though the two of them did not narrate it."I say, rather its chain is daif, and there is objectionable content in its wording. As for the weakness in the chain, Ibn Qattan said in Bayan Wahm (4/419), "The defect in this report lies simply in the fact that the condition of Yaqub bin Mujammi bin Yazid Ansari is unknown." This Yaqub was not confirmed reliable by anyone except that Ibn Hibban mentioned him among his reliable narrators. That is why Hafiz said in Taqrib, "Acceptable," meaning when corroborated, and I have not found any corroborating narration for him, so his narration is weak. There is also disagreement over his chain, and this is not the place to elaborate on it.As for the objectionable content in the wording, Abu Dawud said following the hadith, "The hadith of Abu Muawiya is more sahih, and it is what is practiced upon. I think the error in the hadith of Mujammi lies in his saying 'three hundred horsemen,' when in fact they were two hundred horsemen."I say, Abu Dawud is pointing with the hadith of Abu Muawiya to the hadith of Ibn Umar, which he himself narrated (2733) from Ahmad bin Hanbal, from Abu Muawiya, from Ubaydullah bin Umar, from Nafi, from Ibn Umar, that the Messenger of Allah assigned the man and his horse three shares, one share for himself and two shares for his horse.For further reference, see Marifat Sunan wal-Athar (9/248), Zad Mad (3/331), Fath al-Bari (6/68), and Minna Kubra (6/7-8).A note, in the printed edition of Mustadrak there occurred an omission in the chain of the hadith, and it appears correctly in Dhahabi's Talkhis, printed in the margin of Mustadrak. His statement "al-abair" is the plural of "baeer" (camel), and the meaning is that they were urging and hastening their mounts.As for what has been narrated from Abu Amra, from his father, who said, "We came to the Messenger of Allah, four of us, with a horse among us. He gave each person among us one share, and gave the horse two shares." Its chain is daif.Ahmad narrated it (17239), and from him Abu Dawud (2734), from Abdullah bin Yazid, who said, "Masudi narrated to me, Abu Amra narrated to me, from his father," and he related it.This is a daif chain, for Masudi, who is Abdul-Rahman bin Abdullah bin Utba, had become confused in his later years, and there is disagreement over his chain. At times he stated explicitly that he heard it from Abu Amra, and at other times he inserted between himself and him an unnamed man, and in that version there is no mention of "from his father."Ibn Hajar said, in the entry for Abu Amra in Tahdhib, after presenting some of this disagreement, "What appears from all of this taken together is that the hadith belongs to Abu Amra Ansari and not to anyone else. And Allah knows best." This Abu Amra has no known narrator from him other than Abdul-Rahman bin Abdullah bin Utba Masudi, and no one confirmed his reliability except that Ibn Hibban mentioned him among his reliable narrators.As for what has been narrated from Abdullah bin Zubayr, who used to say, "The Messenger of Allah, in the year of Khaybar, allotted Zubayr bin Awwam four shares, one share for Zubayr, one share for the near kinship on behalf of Safiya bint Abdul-Muttalib, mother of Zubayr, and two shares for the horse." The sahih view is that it is mursal.Nasai narrated it (3593), and Tahawi in Sharh Maani (3/282), by way of Saeed bin Abdul-Rahman Jumahi, and Daraqutni (4/111) and Bayhaqi (6/326) by way of Muhadir bin Muwarra, both of them from Hisham bin Urwa, from Yahya bin Abbad bin Abdullah bin Zubayr, from his grandfather, and he related it.Its core rests upon Hisham bin Urwa, and there is disagreement over it and over the narrators from him in various ways. Daraqutni laid out this disagreement in his Sunan (4/110-111) and in his Ilal (4/230-231), then said in Ilal, "The reliable transmitters from Hisham, those known for precise memory, narrate it from Hisham, from Yahya bin Abbad bin Abdullah bin Zubayr, as mursal, and that is the sahih version."This is how Iraqi quoted Daraqutni's statement in the entry for Ishaq bin Idris Khawlani in Dhayl Mizan. As for the printed edition, the editor established "Ismail" in place of "Hisham" based on his own judgment.The jurisprudence of this chapter, Tirmidhi said, "This is what is practiced upon according to most of the people of knowledge among the companions of the Prophet and others, and it is the view of Sufyan Thawri, Uzai, Malik bin Anas, Ibn Mubarak, Shafii, Ahmad, and Ishaq. They said, 'The horseman receives three shares, one share for himself and two shares for his horse, and the foot soldier receives one share.'"