Sayyidul Istighfar
(Master of Forgiveness)

اللّٰهُمَّ أَنْتَ رَبِّي، لَا إِلٰهَ إِلَّا أَنْتَ
خَلَقْتَنِي، وَأَنَا عَبْدُكَ وَأَنَا عَلَى عَهْدِكَ
وَوَعْدِكَ مَا اسْتَطَعْتُ، أَعُوذُ بِكَ مِنْ
شَرِّ مَا صَنَعْتُ، أَبُوءُ لَكَ بِنِعْمَتِكَ
عَلَيَّ وَأَبُوءُ بِذَنْبِي، فَاغْفِرْ لِي، فَإِنَّهُ
لَا يَغْفِرُ الذُّنُوبَ إِلَّا أَنَتَ

‘O Allah, You are my Lord! There is no god but You. It is You who created me, and I am Your servant. I am faithful to my covenant and my promise to You to my best ability. I seek refuge with You from all the evil I have done. I acknowledge before You all the blessings You have bestowed upon me, and I confess to You to forgive my sins, for nobody can forgive sins but You'.’ 

On the authority of Shaddad ibn Aws (رضالله عنهم) the Prophet (صلي الله عليه وسلم) said, “The chief of prayers for forgiveness is:

Allaa-humma anta robbii. Laa i-laaha illaa anta kho-laqta-nii. Wa ana 'ab-duka, wa ana 'a-laa 'ahdika, wa wa'-dika mas-ta-tho'-tu, 'a-uu-zubika min sharri maa sona'-tu, abuu-u-laka bini'-matika 'alayyaa, wa a-buu-u bi-zambii, fagh-firlii fa innahuu, laa yagh-firuz-zunuuba illaa anta.

The Prophet (صلي الله عليه وسلم) added, “If somebody recites it during the day with firm faith in it and dies on the same day before the evening, he will be from the people of Paradise and if somebody recites it at night with firm faith in it and dies before the morning he will be from the people of Paradise. [Sahih Al-Bukhari]