Sayyiduna Anas bin Malik (may Allah be pleased with him) narrated that Sayyidah Fatimah (may Allah be pleased with her) came to the Prophet (peace and blessings be upon him) with a piece of bread. He (peace and blessings be upon him) asked: "What is this?" She said: A loaf that I baked, and my heart was not at ease until I brought this piece to you. He (peace and blessings be upon him) said: "Listen, this is the first food to enter your father's mouth in three days."
Hadith Referenceالمعجم الكبير للطبراني / باب الألف / 746