Sunan Abi Dawud, Hadith 3642 ⓘ
Al-Walid said : I asked Abu `Amr: What are they writing? He said: The sermon which he heard that day.
حَدَّثَنَا عَلِيُّ بْنُ سَهْلٍ الرَّمْلِيُّ، قَالَ حَدَّثَنَا الْوَلِيدُ، قَالَ قُلْتُ لأَبِي عَمْرٍو مَا يَكْتُبُوهُ قَالَ الْخُطْبَةَ الَّتِي سَمِعَهَا يَوْمَئِذٍ مِنْهُ .
also referenced under: Hadith 3650 (DarusSalam)