اَللَّهُمَّ إِنِّي أَسْأَلُكَ بِرَحْمَتِكَ الَّتِي وَسِعَتْ كُلَّ شَيْءٍ أَنْ تَغْفِرَ لِي
Transliteration
Allaahumma 'innee 'as'aluka birahmatikal-latee wasi'at kulla shay'in 'an taghfira lee
Translation
O Allah, I ask You by Your mercy, which encompasses all things, that You forgive me.
Note
Abdullah bin Amr (RA) used to say this dua during Iftar.
When you break your fast, ask Allah for forgiveness with His wide mercy. This dua of iftar fills that moment with hope, Barakah, and a reminder of Allah's kindness every Ramadan day.
Say this before eating after fasting: Allaahumma laka sumtu wa 'ala rizqika aftartu. It means O Allah, for You I have fasted and by Your provision I have broken the fast. This is the iftar dua.
Prophet Muhammad used to say: Dhahaba al-zama wa'btalat al-'uruq wa thabata al-ajr in sha Allah when he broke his fast. This is a well-known and accepted dua for breaking fast.
Say: Dhahaba adh-dhama'u, wa'btallatil-'urooqu, wa'thabatal-ajru inshaAllah. It means Thirst has gone, veins are moistened, and reward is certain if Allah wills. This prayer is from Sunan Abi Dawud.
Say: My Lord, forgive and have mercy, and You are the Best of those who show mercy. This is from Surah Al-Mu'minun. Muslims often say it during ramadan prayer for mercy and forgiveness.
Say: O Allah, I ask of You, by Your mercy that encompasses everything, to forgive me. Abdullah ibn Amr ibn al-Aas reported this. Muslims say it at iftar for forgiveness.