Yahya related to me from Malik from Zayd ibn Aslam from Ata ibnYasar from Abdullah as-Sanabihi that the Messenger of Allah, may Allahbless him and grant him peace, said, "A trusting slave does wudu andas he rinses his mouth the wrong actions leave it. As he cleans hisnose the wrong actions leave it. As he washes his face, the wrongactions leave it, even from underneath his eyelashes. As he washes hishands the wrong actions leave them, even from underneath hisfingernails. As he wipes his head the wrong actions leave it, evenfrom his ears. And as he washes his feet the wrong actions leave them,even from underneath the toenails of both his feet." He added, "Thenhis walking to the mosque and his prayer are an extra reward for him."
USC-MSA web (English) reference: Book 2, Hadith 31
Arabic reference: Book 2, Hadith 61