اَللَّهُمَّ اغْفِرْ لِيْ جِدِّيْ وَهَزْلِيْ وَخَطَئِيْ وَعَمْدِيْ وَكُلُّ ذٰلِكَ عِنْدِيْ

Allahumm-aghfir li jiddi wa hazli, wa khata'i wa 'amdi, wa kullu dhalika 'indi.

O Allah, forgive me all the sins I have committed knowingly, the mistakes I have made with laughter, the mistakes I have made willingly, the mistakes I have made reluctantly.

Reference: Sahih (Shuaib al-Arnaut). Ibn Hibban 954