وَاستَغفِرِ اللَّهَ
وَاستَغفِرِ اللَّهَ ۖ إِنَّ اللَّهَ كانَ غَفورًا رَحيمًا
Holy Quran chapter 4. النساء verse 106
Seek forgiveness from God. He is All-forgiving and All-merciful
...اَللّٰهُمَّ اِنَّكَ عَفُوٌّ تُحِبُّ الْعَفْوَ فَاعْفُ عَنِّيْ
O Allah! You are the One who pardons, The Most Generous; You love to pardon, so pardon me. (Tirmizi)