The Messenger of Allah ﷺ said, "It is not right for a Muslim man who has wealth concerning which a will should be made to spend three nights without having his will written and kept with him."Abdullah said, "I have not spent a single night since I heard this without my will being written and kept with me."
حدثنا كثير بن هشام حدثنا جعفر بن برقان
قال رسول الله ﷺ ما حق امرئ مسلم له مال يوصى فيه يبيت ثلاثا إلا ووصيته عنده مكتوبة قال عبد الله فما بت ليلة منذ سمعتها إلا ووصيتي عندي مكتوبة
Its isnad is sahih. Kathir bin Hisham Kullabi, his reliability was already established at 1437, and we add here that Ibn Main and others confirmed his reliability, and Ajli said, "Reliable, truthful, he used to act as an agent for merchants, working for a living, and he was one of the most knowledgeable people regarding narrations from Jafar bin Barqan." Bukhari gave his biography in al-Kabir 4/1/218, and Ibn Abu Hatim in al-Jarh wal-Tadil 3/2/158.Jafar bin Barqan, his reliability was already established at 3219, along with the fact that scholars specifically criticized his narrations from Zuhri. We add here that Ibn Main confirmed his reliability on one occasion, and on another occasion said, "Reliable," while noting that he is considered weak specifically in his narrations from Zuhri. Ahmad likewise criticized his narrations from Zuhri specifically. In al-Tahdheeb, it is reported from Ibn Uyayna, "Jafar bin Barqan narrated to us, and he was among the reliable Muslims." Thawri said, "I have not seen anyone better than Jafar bin Barqan." Bukhari gave his biography in al-Kabir 1/2/186 and did not criticize his narrations from Zuhri.We consider this latter view closer to the truth. So if something containing an error appears in his narration from Zuhri, it should be avoided, but as for a blanket criticism of his narration from Zuhri, no, that is not warranted. This particular hadith in question contains no error in his narration from Zuhri, for it has already been mentioned many times, both at length and in summary, through numerous routes, the most recent being at 5930. We have already noted its sourcing with this same extended wording at 4469.Regarding the phrase "he has wealth concerning which he wishes to leave a will," in the m copy it reads "he has what he wishes to leave a will concerning." We have adopted the wording found in the h and k copies.