Jami` at-Tirmidhi 3642
جامع الترمذي#3642SahihNarrated Ibn Jaz:"The laughter of the Messenger of Allah (ﷺ) was not but smiling
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Ahmad Muhammad ShakirSahih
Al-AlbaniSahih
Bashar Awad MaaroufSahih
Zubair Ali ZaiIsnaad Sahih
In-book reference: 49:38