O Allah, I fasted for You, I believe in You, and I break my fast with Your provi — Fasting
اللَّهُمَّ إِنِّي لَكَ صُمْتُ وَبِكَ آمَنْتُ وَعَلَى رِزْقِكَ أَفْطَرْتُ
Transliteration: Allaahumma innee laka sumtu wa bika aamantu wa 'alaa rizqika aftart
Translation: O Allah, I fasted for You, I believe in You, and I break my fast with Your provision.
Reference: Abu Dawud 2:306