The Messenger of Allah ﷺ said, "When a servant performs ablution and washes his hands, his sins fall away from his hands. When he washes his face, his sins fall away from his face. When he washes his forearms and wipes his head, his sins fall away from his forearms and his head. And when he washes his feet, his sins fall away from his feet."
حدثنا أبو بكر بن أبي شيبة ومحمد بن بشار قالا حدثنا غندر محمد بن جعفر عن شعبة عن يعلى بن عطاء عن يزيد بن طلق عن عبد الرحمن بن البيلماني
قال رسول الله ﷺ إن العبد إذا توضأ فغسل يديه خرت خطاياه من يديه فإذا غسل وجهه خرت خطاياه من وجهه فإذا غسل ذراعيه ومسح برأسه خرت خطاياه من ذراعيه ورأسه فإذا غسل رجليه خرت خطاياه من رجليه
[Hasan] Ahmad narrated it: 4/114, from Muhammad bin Jafar Ghundar, in full.Yazid is unknown, and his teacher is daif (Taqrib), but the hadith has supporting evidence, including the previous hadith: 282.