Anas bin Malik (may Allah be pleased with him) said: The Prophet (peace and blessings be upon him) never ate at a table, nor did he eat bread of fine flour, nor did he ever dip (his food) in a small bowl. He was asked: O Abu Hamzah, on what did he (peace and blessings be upon him) eat? He said: On mats.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب النكاح / 13314