The Messenger of Allah said: "Whoever performs ablution and rinses his mouth and nose, his sins will exit through his mouth and nose. When he washes his face, his sins will exit from his face, even from beneath his eyelids. When he washes his hands, his sins will exit from his hands. When he wipes his head, his sins will exit from his head, and even from his ears. When he washes his feet, his sins will exit from his feet, even from beneath his toenails. Then his prayer and walking towards the mosque will earn extra merit for him." (Using translation from Ibn Mājah 282)
إِذَا تَوَضَّأَ الْعَبْدُ فَمَضْمَضَ خَرَجَتِ الْخَطَايَا مِنْ أَنْفِهِ فَإِذَا غَسَلَ وَجْهَهُ خَرَجَتِ الْخَطَايَا مِنْ وَجْهِهِ حَتَّى تَخْرُجَ مِنْ تَحْتِ أَشْفَارِ عَيْنَيْهِ فَإِذَا غَسَلَ يَدَيْهِ خَرَجَتْ خَطَايَاهُ مِنْ يَدَيْهِ حَتَّى تَخْرُجَ مِنْ تَحْتِ أَظْفَارِ يَدَيْهِ فَإِذَا مَسَحَ رَأْسَهُ خَرَجَتِ الْخَطَايَا مِنْ رَأْسِهِ حَتَّى تَخْرُجَ مِنْ أُذُنَيْهِ وَإِذَا غَسَلَ رِجْلَيْهِ خَرَجَتِ الْخَطَايَا مِنْ رِجْلَيْهِ حَتَّى تَخْرُجَ مِنْ تَحْتِ أَظْفَارِ رِجْلَيْهِ ثُمَّ كَانَ مَشْيُهُ إِلَى الْمَسْجِدِ وَصَلَاتُهُ نَافِلَةً لَهُ