Dua 2
اَللّٰهُمَّ اجْعَلْنِيْ مِنَ التَّوَّابِيْنَ وَاجْعَلْنِيْ مِنَ الْمُتَطَهِّرِيْنَ
O Allah, make me among those who repent much and make me among those who purify themselves much.
Sahih, Sunan at-Tirmidhi, no. (55), and al-Albani graded it Sahih in “Tamam al-Minnah” (page 96-97); see also “al-Irwa'” no. (96). For details see: Anwar an-Nasihah (t/55).