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.

