وعن عثمان بن عفان رضي الله عنه
قال: قال رسول الله صلى الله عليه وسلم: «من توضأ فأحسن الوضوء، خرجت خطاياه من جسده حتى تخرج من تحت أظفاره»
The Messenger of Allah (sallallahu alayhi wa sallam) said, “He who performs the Wudu perfectly (i.e., according to Sunnah), his sins will depart from his body, even from under his nails.”.