وعن عائشة رضي الله عنها
قالت: كان كلام رسول الله صلى الله عليه وسلم كلاماً فصلاً يفهمه كل من يسمعه
the speech of Messenger of Allah (sallallahu alayhi wa sallam) was so clear that all those who listened to it would understand it.
Riyad as-Salihin 696, Book 2, The Book of Good Manners, Hadith 17. 1 min read