Ash-Shama'il Al-Muhammadiyah, Book 34, Hadith 223 (In-Book)

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 33, Hadith 213 (English)