اللَّهُمَّ اغْفِرْ لِي ذَنْبِي كُلَّهُ، دِقَّهُ وَجِلَّهُ، وَأَوَّلَهُ وَآخِرَهُ، وَعَلَانِيَتَهُ وَسِرَّهُ
Allahumma-ghfir li dhanbi kullahu, diqqahu wa jillahu, wa awwalahu wa akhirahu, wa 'alaniyyatahu wa sirrahu
Ee Allah, nisamehe dhambi zangu zote, ndogo na kubwa, za kwanza na za mwisho, za wazi na za siri.
Recite in sujood or during personal supplication
This comprehensive istighfar covers all types of sins in all times and conditions.