Dou'aa after the meal of an invitation

اَللّٰهُمَّ أَطْعِمْ مَنْ أَطْعَمَنِيْ وَاسْقِ مَنْ سَقَانِيْ

‎" Allhoumma att imm-mann att-amani wassqi mann saqaani"‎

Translation: 'Oh Allah, feed the one who fed me and quench the one who quenched me!'‎

Hazrat Anas (Radiyallahou anhoum) reports that the angels do not enter houses which are not visited by guests.‎

‎[English version of "Dou'aa après le repas d’une invitation" - Al Haadi Vol.3 No.1]‎