Authentic
Sahih al-Bukhari 95
Anas ibn Mālik (may Allah be pleased with him) reported: Whenever the Prophet (may Allah's peace and blessings be upon him) spoke a word, he would repeat it thrice until it is understood from him. Whenever he greeted a group of people, he would greet…
إِذَا تَكَلَّمَ بِكَلِمَةٍ أَعَادَهَا ثَلاَثًا حَتَّى تُفْهَمَ عَنْهُ، وَإِذَا أَتَى عَلَى قَوْمٍ فَسَلَّمَ عَلَيْهِمْ سَلَّمَ عَلَيْهِمْ ثَلاَثًا.
Narrated by Anas ibn Mālik + 3 other versions Explained
Differing grades
Sunan Abu Dawud 4839
‘Ā'ishah (may Allah be pleased with her) reported: The speech of the Messenger of Allah (may Allah's peace and blessings be upon him) was clearly articulated that anyone who listened to him could understand it.
كَانَ كَلاَمُ رَسُولِ اللَّهِ صلى الله عليه وسلم كَلاَمًا فَصْلاً يَفْهَمُهُ كُلُّ مَنْ سَمِعَهُ .
Narrated by Ā’ishah + 1 other version Explained