Supplication upon Breaking the Fast

understandislam:

Dhahabadh thammu wabtallatil ‘urooqu wa thabatal ajru inshaa’ Allah
The thirst has gone, the veins are moistened, and the reward is certain, if Allaah wills.

[Reference: Abu Daawood 2/306 and others. See: Saheeh al-Jaami’ 4/209]