Musannaf Ibn Abi Shaybah 39867 — Reports on the caliphate and killing

It is narrated from Nafi' that a man who was called Jahjah took the staff that was in the hand of Sayyiduna Uthman (may Allah be pleased with him), placed it on his knee and broke it. Then (in the end) that man was afflicted at that very place with a flesh-eating disease (akilah).