I was asked in yesterday's lecture (Tawḥīd #42) about the authenticity of last report in the chapter that mentions 'Umar and the two men who had a dispute, one of them not being pleased with going to the Messenger (ṣallallāhu alayhe wa sallam) to judge between them.
My answer was, "I don't know."
Shaykh Sulaymān al-Hafeed, the grandson of the author, a scholar in his own right, author of "Tayseer al-'Azīz al-Hameed", traced a few reports that resemble the story mentioned and said:
In summary, the story is famous, reported by multitudes of the Salaf and later generations, with such widespread reporting that suffices, not needing (study of) the chain. It has numerous routes, and the weakness in its chain does not affect it.