Abu Umaamah Radiyallahu-'Anhu says: "When the dastarkhaan (table cloth) was being removed in the presence of Rasulullah Sallailahu 'Alayhi Wasallam, Rasulullah Saliallahu 'Alayhi Wasallam recited this du'aa:

Alhamdulillaahi hamdan kathiran tayyiban mubaarakan fihi-ghayra mu-wadda-in wa-laa mus-taghnan 'anhu rabbuna.

Translation...

Praise be to Allah, abundant, excellent, blessed praise! Unceasing, never parting, indispensable (praise), Lord of us".