Did the Messenger (peace and blessings of Allah be upon him) curse a man with his private parts, as Christians claim?

There is no Hadith that mentions the Prophet, peace and blessings be upon him, ever cursed a man. It is well-known that he was the furthest of all people from obscenity and foul language, as described by Anas ibn Malik, may Allah be pleased with him. The questioner referred to the Hadith: "Whoever boasts of the boasts of the Jahiliyyah (pre-Islamic era of ignorance), make him bite his father's penis, and do not use euphemisms." This is an authentic Hadith and was mentioned in the context of denouncing those who exhibit pre-Islamic tribal partisanship.