O Allah, feed whoever fed me and give drink to whoever gave me drink. — Eating & Drinking

اللَّهُمَّ أَطْعِمْ مَنْ أَطْعَمَنِي وَاسْقِ مَنْ سَقَانِي

Transliteration: Allaahumma at'im man at'amanee wasqi man saqaanee

Translation: O Allah, feed whoever fed me and give drink to whoever gave me drink.