ذَهَبَ الظَّمَأُ وَابْتَلَّتِ الْعُرُوقُ وَثَبُتَ الْأَجْرُ إِنْ شَاءَ اللَّهُ
The thirst has quenched and left wetness and with the will of Allah, the reward is proven (certain)
(Abu Dawood etc).