﴿ لِّيُدْخِلَ ٱلْمُؤْمِنِينَ وَٱلْمُؤْمِنَٰتِ جَنَّٰتٍۢ تَجْرِى مِن تَحْتِهَا ٱلْأَنْهَٰرُ خَٰلِدِينَ فِيهَا وَيُكَفِّرَ عَنْهُمْ سَيِّـَٔاتِهِمْ ۚ وَكَانَ ذَٰلِكَ عِندَ ٱللَّهِ فَوْزًا عَظِيمًۭا ﴾

“[and] that He might admit the believers, both men and women, into gardens through which running waters flow, therein to abide, and that He might efface their [past bad] deeds: and that is, in the sight of God, indeed a triumph supreme!”

Please check ayah 48:7 for complete tafsir.