Humran reported,

I saw Uthman bin Affan perform ablution. He poured water over his hands three times and washed them, then rinsed his mouth and blew water out of his nose. He washed his face three times, then washed his right arm up to the elbow three times, then his left arm in the same way. He wiped his head, then washed his right foot three times, then his left foot in the same way.Then he said, "I saw the Messenger of Allah ﷺ perform ablution just as I have performed mine."Then he said, "Whoever performs ablution as I have done and then prays two units of prayer without letting his mind wander during them, Allah will forgive his past sins."

حدثنا الحسن بن علي الحلواني حدثنا عبد الرزاق أخبرنا معمر عن الزهري عن عطاء بن يزيد الليثي

عن حمران بن أبان مولى عثمان بن عفان قال

رأيت عثمان بن عفان توضأ فأفرغ على يديه ثلاثا فغسلهما ثم تمضمض واستنثر ثم غسل وجهه ثلاثا وغسل يده اليمنى إلى المرفق ثلاثا ثم اليسرى مثل ذلك ثم مسح رأسه ثم غسل قدمه اليمنى ثلاثا ثم اليسرى مثل ذلك ثم قال رأيت رسول الله ﷺ توضأ مثل وضوئي هذا ثم قال من توضأ مثل وضوئي هذا ثم صلى ركعتين لا يحدث فيهما نفسه غفر الله له ما تقدم من ذنبه