Hadith 5828
Mishkat al-Masabih
Excellent Qualities and Description of the Prophet · His Character and Natural Disposition - Section 2
Arabic
وَعَنْ عَائِشَةَ قَالَتْ: مَا كَانَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ يَسْرُدُ سَرْدَكُمْ هَذَا وَلَكِنَّهُ كَانَ يَتَكَلَّمُ بِكَلَامٍ بَيْنَهُ فَصْلٌ يَحْفَظُهُ من جَلَسَ إِلَيْهِ. رَوَاهُ التِّرْمِذِيّ
English translation
`A'isha said: God's messenger did not go on talking rapidly as you do, but spaced out his words so that those who sat with him could remember them. Tirmidhi transmitted it.