اللَّهُمَّ أَطْعِمْ مَنْ أَطْعَمَنِي، وَاسْقِ مَنْ سَقَانِي

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

Reference: O Allāh, feed him who fed me, and provide with drink him who provided me with drink. Muslim (#2055, 3/1626).