This dua should be recited just before breaking the fast
للَّهُمَّ لَكَ صُمْتُ وَعَلَى رِزْقِكَ اَفْطَرْتُوَ وَ عَلَيْكَ تَوَكَّلْتُ
'Dua-e-Iftaar' is tagged in Ramadhan collection. See other dua's from Ramadhan
This dua should be recited just before breaking the fast
للَّهُمَّ لَكَ صُمْتُ وَعَلَى رِزْقِكَ اَفْطَرْتُوَ وَ عَلَيْكَ تَوَكَّلْتُ
'Dua-e-Iftaar' is tagged in Ramadhan collection. See other dua's from Ramadhan