It is narrated from Sayyidah Umm Salamah (may Allah be pleased with her) that the Prophet (peace and blessings be upon him) said: "Do not cut bread with a knife as the non-Arabs cut it. And when one of you wants to eat meat, let him not cut it with a knife; rather, let him take it in his hand and bite it off with his mouth, for that is more pleasant and easier to digest."
Hadith Referenceالمعجم الكبير للطبراني / مسند النساء / 19928