The Prophet ﷺ said to Hassan, "Satirize them," or "Lampoon them, and Jibreel is with you."
قال النبي ﷺ لحسان: اهجهم أو هاجهم وجبريل معك.
Bukhari narrated it in "The Beginning of Creation" (3213), and Muslim in "The Virtues of the Companions" (2486), both through the route of Shubah, from Adi bin Thabit, from Bara, who said, "..." (and he mentioned it).