Malik bin Dinar relates:
The Prophet ﷺ never ever filled his stomach with bread, nor with meat except in the situation of dafaf. Malik bin Dinar asked a Bedouin man: What is dafaf? He responded: That he would eat with the people.
Shama'il al-Muhammadiya 68b
Shama'il al-Muhammadiya Book of The Socks of Prophet of Allah ﷺ, Hadith 68b