Hadith 16595
It is narrated from a servant of the Prophet (peace be upon him) who served the Prophet (peace be upon him) for eight years, that when food was presented before the Prophet (peace be upon him), he would begin by saying "Bismillah" (In the name of Allah), and when he finished eating, he would recite this supplication: "O Allah! You have fed and given drink, granted sufficiency and provision, You have given guidance and life; all praise is due to You for Your bounties."