"The Messenger of Allah said: 'When a person performs ablution and washes his hands, his sins exit through his hands. When he washes his face, his sins exit through his face. When he washes his forearms and wipes his head, his sins exit though his forearms and head. When he washes his feet, his sins exit through his feet.'" (Using translation from Ibn Mājah 283)
"إذَا تَوضَّأ العَبْدُ فَغَسلَ يديهِ جَرَتْ خطاياهُ مِن يدَيهِ فإِذا غَسَلَ وَجْههُ
جَبرَتْ خَطَاياهُ مِنْ وَجْهِه، وإذا غسل ذِراعيه جَرَتْ خطَاياهُ مِنْ ذراعَيه، وإذا غَسَل رِجليه جَرَت خطاياهُ مِن رِجليه".