From Sahih Bukhari (Hadith 6150):
Narrated `Aisha:Hassan bin Thabit asked the permission of Allah's Messenger (ﷺ) to lampoon the pagans (in verse). Allah's Apostle said, "What about my fore-fathers (ancestry)?' Hassan said (to the Prophet) "I will take you out of them as a hair is taken out of dough." Narrated Hisham bin `Urwa that his father said, "I called Hassan with bad names in front of `Aisha." She said, "Don't call him with bad names because he used to defend Allah's Messenger (ﷺ) (against the pagans)
Reference: Bukhari 6150