اللَّهُمَّ لَكَ صُمْتُ وَعَلَى رِزْقِكَ أَفْطَرْتُ
Allahumma laka sumtu wa 'ala rizqika aftartu
O Allah, for You I have fasted and with Your provision I break my fast.
Said at the moment of iftar. "For You I fasted" — dedicating the hunger, the thirst, the patience to Allah. "With Your provision I break my fast" — acknowledging that even the food ending your fast is His gift. It bookends the day: you started fasting for Him, and you end it through Him. The entire day becomes a continuous act of worship.
Related Du'as
اللَّهُمَّ تَقَبَّلْ صِيَامِي وَقِيَامِي وَرُكُوعِي وَسُجُودِي
O Allah, accept my fasting, my standing in prayer, my bowing, and my prostration.
Atharاللَّهُمَّ أَعِنِّي عَلَى صِيَامِهِ وَقِيَامِهِ
O Allah, help me to fast and pray during it (Ramadan).
Atharاللَّهُمَّ بَلِّغْنَا رَمَضَانَ وَأَعِنَّا عَلَى صِيَامِهِ وَقِيَامِهِ وَتَقَبَّلْهُ مِنَّا
O Allah, let us reach Ramadan, help us to fast and pray in it, and accept it from us.
Hasanإِنِّي صَائِمٌ إِنِّي صَائِمٌ
I am fasting, I am fasting. (Say this when provoked while fasting.)
Sahih