اللَّهُمَّ إنِّى لَكَ صُمْتُ وَبِكَ آمَنْتُ [وَعَلَيْكَ تَوَكَّلْتُ] وَعَلَى رِزْقِكَ اَفْطَرْتُ

Allahumma inni laka sumtu wa bika aamantu [wa ‘alayka tawakkaltu] wa ‘alaa rizqika aftartu 

O Allah! I fasted for You and I believe in You [and I put my trust in You] and I break my fast with Your sustenance.