اللَّهُمَّ اجْعَلْنِي مِنَ التَّوَّابِينَ وَاجْعَلْنِي مِنَ الْمُتَطَهِّرِينَ
Allahumma-j'alni minat-tawwabina waj'alni minal-mutatahhirin
Ya Allah, ka sanya ni daga cikin masu tuba kuma ka sanya ni daga cikin masu tsarkakewa.
Say after completing wudu, following the shahada
This dua asks Allah to make you among those who constantly seek forgiveness and purification.