Whoever performs ablution perfectly, his sins will come out from his body, to the extent that it will come out from under his nails

The Prophet (may Allah's peace and blessings be upon him) informs that if a person performs ablution while observing its Sunnahs and etiquettes, this will cause his sins and misdeeds to be expiated and forgiven - to the extent that his sins will come out from under the nails of his hands and feet.