General Behavior (Kitab Al-Adab)
Dawud :: Book 41 : Hadith 5205
Narrated Usayd ibn Hudayr,:
AbdurRahman ibn AbuLayla, quoting Usayd ibn Hudayr, a man of the Ansar, said that while he was given to jesting and was talking to the people and making them laugh, the Prophet (peace_be_upon_him) poked him under the ribs with a stick. He said: Let me take retaliation. He said: Take retaliation. He said: You are wearing a shirt but I am not. The Prophet (peace_be_upon_him) then raised his shirt and the man embraced him and began to kiss his side. Then he said: This is what I wanted, Apostle of Allah!