اَللّٰهُمَّ مَغْفِرَتُكَ اَوْسَعُ مِنْ ذُنُوْبِي
allaahumma maghferatoka awsa-o’ min zonoobee
O Allah! Your forgiveness is greater than my sinsْ
In al-Behaar: Narrated from Abdillah ibn Sinan from Abi Abdillah (a.s.):
When the Holy Prophet (s.a.w.a.) put his face (on the earth) for sujood, he (s.a.w.a.) would say
وَ رَحْمَتُكَ اَرْجٰي عِنْدِيْ مِنْ عَمَلِيْ
wa rahmatoka arjaa i’ndee min a’malee
and I am more hopeful of Your mercy than of my actions,
فَاغْفِرْ لِيْ ذُنُوْبِيْ يَا حَيًّا لَا يَمُوْتُ.
faghfir lee zonoobee yaa hayyan laa yamooto.
so forgive my sins; O Living! Who never dies!