I saw the Messenger of Allah ﷺ that he kissed Uthman ibn Maz'un while he was dead, and I saw that tears were flowing (from his eyes). (Using translation from Abū Dāʾūd 3163)
عَنْ عَائِشَةَ قَبَّلَ رَسُولُ اللهِ ﷺ عُثْمَانَ بْنَ مَظْعُونٍ وَهُوَ مَيِّتٌ حَتَّى رَأَيْتُ الدُّمُوعَ تَسِيلُ عَلَى وَجْهِهِ