Ash-Shama'il Al-Muhammadiyah, Book 33, Hadith 213 (English)

Aisha radiyallahu anha relates that the speech of Rasoolullah sallallahu alaihe wasallam was not quick and continuous as that of yours. He spoke clearly, word for word. A person sitting in his company remembered what he said.

حَدَّثَنَا حُمَيْدُ بْنُ مَسْعَدَةَ الْبَصْرِيُّ، قَالَ‏:‏ حَدَّثَنَا حُمَيْدُ بْنُ الأَسْوَدِ، عَنِ أُسَامَةَ بْنِ زَيْدٍ، عَنِ الزُّهْرِيِّ، عَنْ عُرْوَةَ، عَنْ عَائِشَةَ، قَالَتْ‏:‏ مَا كَانَ رَسُولُ اللهِ صلى الله عليه وسلم يَسْرُدُ سرْدَكُمْ هَذَا، وَلَكِنَّهُ كَانَ يَتَكَلَّمُ بِكَلامٍ بَيِّنٍ فَصْلٍ، يَحْفَظُهُ مَنْ جَلَسَ إِلَيْهِ‏.‏

also referenced under: Book 34, Hadith 223 (In-Book)