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Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
bukhari:6092 – Yaḥyá b. Sulaymān > Ibn Wahb > ʿAmr > Abū al-Naḍr > Sulaymān b. Yasār > ʿĀʾishah

I never saw the Prophet ﷺ laughing to an extent that one could see his palate, but he always used to smile only.  

البخاري:٦٠٩٢ – حَدَّثَنَا يَحْيَى بْنُ سُلَيْمَانَ قَالَ حَدَّثَنِي ابْنُ وَهْبٍ أَخْبَرَنَا عَمْرٌو أَنَّ أَبَا النَّضْرِ حَدَّثَهُ عَنْ سُلَيْمَانَ بْنِ يَسَارٍ عَنْ عَائِشَةَ ؓ قَالَتْ

مَا رَأَيْتُ النَّبِيَّ ﷺ مُسْتَجْمِعًا قَطُّ ضَاحِكًا حَتَّى أَرَى مِنْهُ لَهَوَاتِهِ إِنَّمَا كَانَ يَتَبَسَّمُ