﴿ وَعَدَ ٱللَّهُ ٱلَّذِينَ ءَامَنُوا۟ وَعَمِلُوا۟ ٱلصَّٰلِحَٰتِ ۙ لَهُم مَّغْفِرَةٌۭ وَأَجْرٌ عَظِيمٌۭ ﴾

“God has promised unto those who attain to faith and do good works [that] theirs shall be forgiveness of sins, and a mighty reward;”

(Allah hath promised those who believe) in Muhammad and the Qur'an (and do good works) and do acts of obedience regarding that which is between them and their Lord: (Theirs will be forgiveness) of their sins in this world (and immense reward) in Paradise.