Hadithcore
Riyad as-Salihin, 702

'Aishah (May Allah be pleased with him) reported:

I have never seen Messenger of Allah (ﷺ) laughing so heartily that his uvula could be seen. He used to smile only. <b>[Al-Bukhari and Muslim]</b>.

عن عائشة رضي الله عنها قالت‏:‏ ما رأيت رسول الله صلى الله عليه وسلم مستجمعا قط ضاحكاً حتى ترى منه لهواته، إنما كان يتبسم ‏.‏ ‏(‏‏(‏متفق عليه‏)‏‏)‏ ‏.‏

References1 variant
In-Book Reference
Book 1, Hadith 23
Sharh · explanationclick to expand
<b>Guidance from the Hadith:</b><br> 1) It shows the calmness and solemnity of the Prophet (may Allah’s peace and blessings be upon him). His laughter was in the form of smiling whenever he liked something or approved of it. A fortunate person would follow the Prophet’s example in his laughter and all other acts.<br> 2) Laughing too much and loud giggling are not typical of the righteous, for this deadens the heart. The Prophet (may Allah’s peace and blessings be upon him) said: “Do not laugh too much, for laughing too much deadens the heart.” [Narrated by Ahmad]