After completing the meal, one should recite the following duaa:
الحَمْدُ لِلَّهِ الَّذِي كَفَانَا وَأَرْوَانَا، غَيْرَ مَكْفِيٍّ وَلاَ مَكْفُور
All praise is due to Allah Ta’ala who fulfilled our need and quenched our thirst, (O Allah), we do not regard our praises to be sufficient (in praising You for the food You have granted us), nor are we ungrateful (for Your favours upon us).
عن أبي أمامة : أن النبي صلى الله عليه وسلم كان إذا فرغ من طعامه – وقال مرة: إذا رفع مائدته – قال: الحمد لله الذي كفانا وأروانا، غير مكفي ولا مكفور (صحيح البخاري رقم 5459)
Hazrat Abu Umaamah (Radhiyallahu Anhu) reports that Rasulullah (sallallahu ‘alaihi wasallam) would recite the following Duaa upon completing his meals or at the time when the dastarkhaan (eating cloth) would be lifted:
الحَمْدُ لِلَّهِ الَّذِي كَفَانَا وَأَرْوَانَا، غَيْرَ مَكْفِيٍّ وَلاَ مَكْفُور