I saw the Messenger of Allah ﷺ kissing Uthman bin Mazun while he lay dead, until I saw tears flowing down.
حدثنا محمد بن كثير أخبرنا سفيان عن عاصم بن عبيد الله عن القاسم
رأيت رسول الله ﷺ يقبل عثمان بن مظعون وهو ميت حتى رأيت الدموع تسيل
[Its chain of transmission is daif]Reported by Tirmidhi, in the Book of Funerals, chapter on what has been said regarding kissing the deceased, no. 989, and Ibn Majah, no. 1456, from the hadith of Sufyan, through this same route, and Tirmidhi said, hasan sahih.Asim bin Ubaydullah is daif. The hadith has supporting narrations in Bazzar (Kashf), no. 806, and Abu Naeem in Hilyah, 1/105, and others.