'Uthman bin 'Affan reported: The Messenger of Allah (ﷺ) said: He who performed ablution well, his sins would come out from his body, even coming out from under his nails.
Hadith ReferenceSahih Muslim / The Book of Purification / Hadith: 245
Hadith Gradingمحدثین:أحاديث صحيح مسلم كلها صحيحة
Hadith Takhrij«أحاديث صحيح مسلم كلها صحيحة ، انفرد به مسلم - انظر ((التحفة)) برقم (9796)»