Sayyiduna Uthman ibn Affan رضي الله عنه reported:
I saw the Messenger of Allah ﷺ call for water and performed wudhu/ablution, then he laughed.
The Messenger of Allah ﷺ said, “Will you not ask me what made me laugh?”
They said, “What made you laugh, O Messenger of Allah?”
The Messenger of Allah ﷺ said, “Verily, when a person performs wudhu/ablution and washes his face, Allah Taàlah removes every sin he committed with his face. Likewise, when he washes his arms, wipes his head, and washes his feet.”
(Musnad Ahmad 417)