I asked, "Messenger of Allah, shall I write down everything I hear from you?"He replied, "Yes."I asked, "In times of contentment and in times of anger?"He replied, "Yes, for I say nothing in any of those states except the truth."
قلت: يا رسول الله، أكتب كل ما أسمع منك؟ قال: نعم. قلت: في الرضا والغضب؟ قال: نعم، فإني لا أقول في ذلك كله إلا حقا.
Imam Ahmad narrated it (6930), as did Ibn Abdul-Barr in Jami Bayan Ilm (388), and Khatib in Taqyid Ilm (80), all of them through Muhammad bin Ishaq, from Amr bin Shuayb, from his father, from his grandfather, who related the hadith. Its chain is hasan, because Muhammad bin Ishaq explicitly stated "I was told" (haddathani) in the version recorded by Khatib. As for the discussion concerning Ismail bin Abu Uways, he has been criticized regarding his memory, and he would make mistakes when narrating from memory, but I hope he did not err here, given its corroborating narrations, and he is among the narrators used by the two Shaikhs (Bukhari and Muslim).The hadith of Anas has other paths, both stopped (mawquf) and elevated (marfu), none of them sahih. Hakim referred to some of these in al-Mustadrak (1/106), saying, "The narration from Anas bin Malik is sound as his own statement, but it has been attributed with a chain that is not reliable." He then said, "Some Basran narrators trace it back through Ansari," meaning Muhammad bin Abdullah Ansari, "who said, my father told me, from Thumama, from Anas, that he used to say to his sons, 'Bind knowledge with writing.'" I say, perhaps he was not aware of the chain I have mentioned. Allah, the Exalted, knows best.On this same theme there are two daif hadiths. The first is what was narrated from Abdullah bin Amr, who said, I said, "O Messenger of Allah, should I write down knowledge?" He said, "Yes." I said, "And what is meant by writing it down?" He said, "In a book." Khatib narrated it in Taqyid Ilm (p. 68), and Hakim (1/106), through chains going back to Abdullah bin Muammal, from Ibn Jurayj, from Ataa, from Abdullah bin Amr, who related it.Tabarani also recorded it in al-Kabir and al-Awsat through this same path. Haythami said in al-Majmu (1/152), "It contains Abdullah bin Muammal, whom Ibn Main and Ibn Hibban considered reliable, while Ibn Saad said, 'Reliable, but with few hadiths,' and Imam Ahmad said, 'His hadiths are objectionable.'" I say, Abdullah bin Muammal is Ibn Hibah Makhzumi Makki, whom Ibn Hajar in Taqrib simply described as "weak in hadith." Dhahabi said in Talkhis al-Mustadrak, "Daif." The chain also contains Ibn Jurayj, who was a mudallis and narrated here using "an" (without specifying direct hearing), but he is corroborated, since Khatib narrated it through another path from Abdullah bin Muammal, from Ibn Abu Mulayka, from Abdullah bin Amr bin As, who said, I said, "O Messenger of Allah, should I write down knowledge?" He said, "Yes."The second daif hadith is what was narrated from Ibn Abbas, who said, the Messenger of Allah said, "Bind knowledge with writing." Ibn Adi recorded it in al-Kamil (2/792) from Abu Thabit Muhammad bin Abdullah Ansari, who said, Hafs bin Umar bin Abu Attaf told us, from Abu Zinad, from Araj, from Ibn Abbas, who related the hadith. Regarding Hafs bin Umar bin Abu Attaf, it has been reported from Bukhari that he said, "His hadith is objectionable (munkar)." Nasai said, "Daif." Ibn Hajar said, "Daif."Likewise, what was narrated from Abu Hurairah is not sahih. He said, there was a man from the Ansar who used to sit with the Prophet and hear hadith from him that pleased him, but he could not memorize it. He complained about this to the Prophet, saying, "O Messenger of Allah, I hear hadith from you that pleases me, but I do not memorize it." The Messenger of Allah said, "Rely on your right hand," gesturing with his hand as if writing. Tirmidhi narrated it (2666) through Layth, from Khalil bin Murrah, from Yahya bin Abu Salih, from Abu Hurairah. Khalil bin Murrah is daif. Tirmidhi said, "This hadith's chain is not firmly established, and I heard Muhammad bin Ismail say, Khalil bin Murrah's hadith is objectionable (munkar)."