Dua for someone who gives you a drink or offers it to you

O Allah, feed the one who has fed me and drink to the one who has given me drink.

اللّهُـمَّ أَطْعِمْ مَن أَطْعَمَني، وَاسْقِ مَن سَقَانِي

Allaahumma ‘at’im man ‘at’amanee wasqi man saqaanee.