The Messenger of Allah ﷺ allotted on the day of Khaybar two shares for the horse and one share for the man.Abu Muawiya said, "He allotted the man and his horse three shares, one share for him and two shares for his horse."
حدثنا عبد الله حدثني أبي من كتابه حدثنا هشيم بن بشير عن عبيد الله وأبو معاوية أخبرنا عبيد الله عن نافع
أن رسول الله ﷺ جعل يوم خيبر للفرس سهمين وللرجل سهما وقال أبو معاوية أسهم للرجل ولفرسه ثلاثة أسهم سهما له وسهمين لفرسه
Its isnad is sahih. Hushaym, his reliability was already established at 154, and we add here that Bukhari gave him a biographical entry in Tarikh al-Kabir, 24/2/242, and it was narrated from Ibn Mubarak that he said, "Whoever's memory changed, Hushaym's memory did not change."Ubaydullah is Ibn Umar bin Hafs bin Asim bin Umar bin Khattab, one of the seven jurists, a trustworthy and reliable imam, trusted, and no one is more reliable than him regarding the hadith of Nafi. Amr bin Ali Fallas said, "I mentioned to Yahya bin Saeed the statement of Ibn Mahdi that Malik was more reliable than Ubaydullah regarding Nafi, so he became angry and said, 'Abu Hatim reported from Ahmad that Ubaydullah is the most reliable of them, the most retentive of them, and the most prolific in narration among them.'"Nafi is the freed slave of Abdullah bin Umar, who acquired him during one of his campaigns. He is a great imam among the imams of the Followers, trustworthy, an authority. Malik said, "When I heard something from Nafi narrating from Ibn Umar, I did not care whether I heard it from anyone else." Ismail bin Umaya said, "We used to correct Nafi, the freed slave of Ibn Umar, on grammatical mistakes, but he would refuse." Bukhari gave him a biographical entry in Tarikh al-Kabir, 4/2/84-85.This hadith was narrated by Abu Dawud, 3:27, from Ahmad bin Hanbal, from Abu Muawiya. Munziri said, "It was also transmitted by Bukhari, Muslim, Tirmidhi, and Ibn Majah."