Invocation for someone who gives you drink or offers it to you

اللَّهُمَّ أَطْعِمْ مَنْ أَطْعَمَنِي، وَاسْقِ مَنْ سَقَانِي

Allāhumma aṭʿim man aṭʿamanī, wa isqi man saqānī

O Allah, feed him who fed me, and provide with drink him who provided me with drink.