(the freed slave of ʿUthman bin ʿAffan) I saw ʿUthman bin ʿAffan asking (for a tumbler of water) to perform ablution (and when it was brought) he poured water from it over his hands and washed them thrice and then put his right hand in the water container and rinsed his mouth and washed his nose by putting water in it and then blowing it out. Then he washed his face thrice and (then) forearms up to the elbows thrice, then passed his wet hands over his head and then washed each foot thrice. After that ʿUthman said, "I saw the Prophet ﷺ performing ablution like this of mine, and he said, 'If anyone performs ablution like that of mine and offers a two-rakʿat prayer during which he does not think of anything else (not related to the present prayer) then his past sins will be forgiven. '  

أَنَّهُ رَأَى عُثْمَانَ دَعَا بِوَضُوءٍ فَأَفْرَغَ عَلَى يَدَيْهِ مِنْ إِنَائِهِ فَغَسَلَهُمَا ثَلاَثَ مَرَّاتٍ ثُمَّ أَدْخَلَ يَمِينَهُ فِي الْوَضُوءِ ثُمَّ تَمَضْمَضَ وَاسْتَنْشَقَ وَاسْتَنْثَرَ ثُمَّ غَسَلَ وَجْهَهُ ثَلاَثًا وَيَدَيْهِ إِلَى الْمِرْفَقَيْنِ ثَلاَثًا ثُمَّ مَسَحَ بِرَأْسِهِ ثُمَّ غَسَلَ كُلَّ رِجْلٍ ثَلاَثًا ثُمَّ قَالَ رَأَيْتُ النَّبِيَّ ﷺ يَتَوَضَّأُ نَحْوَ وُضُوئِي هَذَا وَقَالَ مَنْ تَوَضَّأَ نَحْوَ وُضُوئِي هَذَا ثُمَّ صَلَّى رَكْعَتَيْنِ لاَ يُحَدِّثُ فِيهِمَا نَفْسَهُ غَفَرَ اللَّهُ لَهُ مَا تَقَدَّمَ مِنْ ذَنْبِهِ