804 - I heard Muhammad ibn Ubayd Allah ibn Yazid al-Munadi narrating something about Ahmad ibn Hanbal, but I did not memorize it nor did I write it down. Then Muhammad ibn Abi Harun informed me, saying: I heard Ibn al-Munadi saying: I was with Ahmad ibn Hanbal, and Ahmad ibn Ibrahim al-Mawsili, who used to narrate [hadith], came with a son of his. Al-Mawsili took out a notebook from his son's sleeve and handed it to Abu Abd Allah [Ahmad ibn Hanbal]. Ahmad looked into the book, and his complexion began to change, as if he were feeling offended. When Ahmad finished looking through the notebook, he said: 'The Almighty and Majestic has said: "Do not raise your voices above the voice of the Prophet, and do not be loud to him in speech" [Al-Hujurat: 2]. Does the one who narrated these [reports] not fear that his deeds might be rendered void while he is unaware?' Then, after al-Mawsili had left, Ahmad said: 'Do you know who narrates these things?' I replied: 'No.' He said: 'This is your neighbor,' meaning Khalaf.