Messenger of Allah said: "Whoever continuously performs the two Rak'ah of Ad-Duha his sins will be forgiven, even if they be like the foam of the sea."
قَالَ رَسُولُ اللَّهِ ﷺ مَنْ حَافَظَ عَلَى شُفْعَةِ الضُّحَى غُفِرَ لَهُ ذُنُوبُهُ وَإِنْ كَانَتْ مِثْلَ زَبَدِ الْبَحْرِ