Majma al-Zawaid — Hadith 7901

Ibn A'bud says: Sayyiduna Ali bin Abi Talib (may Allah be pleased with him) said to me: "O Ibn A'bud! Do you know what the right of food is?" I said: "O Ibn Abi Talib! What is its right?" He said: "You say: 'Bismillah, Allahumma barik lana fima razaqtana' (In the name of Allah; O Allah, bless us in what You have provided us)." Then he said: "Do you know what its thanks is when you have finished?" I asked: "What is its thanks?" He said: "You say: 'Al-hamdu lillahi alladhi at'amana wa saqana' (All praise is for Allah who fed us and gave us drink)."
Abdullah bin Ahmad recorded it, and he recorded it as a lengthy narration. About Ibn A'bud, Ibn al-Madini said: "He is not known." The remaining narrators of this report are thiqat (trustworthy).