The Prophet ﷺ visited Abbas at a desert encampment of ours where we had a small dog and a female donkey grazing. The Prophet ﷺ performed the afternoon prayer with them in front of him, and they were neither moved back nor driven away.
حدثنا حجاج قال قال ابن جريج أخبرني محمد بن عمر بن علي عن عباس بن عبيد الله بن عباس
زار النبي ﷺ عباسا في بادية لنا ولنا كليبة وحمارة ترعى فصلى النبي ﷺ العصر وهما بين يديه فلم تؤخرا ولم تزجرا
Its isnad is daif because of a break in the chain. Muhammad bin Umar is Muhammad bin Umar bin Ali bin Abu Talib, whose reliability has already been established at 628. In K it appears as Muhammad bin Amr, which is an error. In fact al-Hafiz stated definitively in Tahdhib 9:377 that none of Ali's sons was named Amr.Abbas bin Ubaydullah bin Abbas is trustworthy. Ibn Hibban mentioned him among Al-Thiqat, and Bukhari gave his biography in Al-Kabir 3/1/4, as did Ibn Abu Hatim in Al-Jarh wal-Tadil 21/1/3, and neither of them mentioned any criticism of him. However, Ibn Hazm stated definitively that he never met his uncle Fadl, and al-Hafiz agreed with him on this in Tahdhib.The hadith was narrated by Abu Dawud 1:261, Nasai 1:123, and Tahawi in Maani al-Athar 1:266. Ibn Hazm also mentioned it in Al-Muhalla 4:13 in our edition, and said, "This is invalid, because Abbas bin Ubaydullah never met Fadl." This seems correct to me, because Fadl died in the year 12 or 18, which would make his brother Ubaydullah's age at the time of his death thirteen or at most nineteen years. How then could he have had a son old enough to be discerning, to have met his uncle Fadl, and to have heard from him?