'Aayeshah Radiyallahu 'Anha reports:
"Rasulullah Sallallahu 'Alayhi Wasallam kissed the forehead of 'Uthmaan bin Maz'oon after his death. At that time tears were flowing from his eyes". (ID)
English reference (ID): Book 44, Hadith 309 (ID)
Arabic reference (ID): Book 45, Hadith 326 (ID)