‏الأقضية : Hadeeth No:4266 'A'isha reported Allaah's Messenger (sallAllaahu alayhi wa sallam) as saying: He who innovates things in our affairs for which there is no valid (reason) (commits sin) and these are to be rejected....

‏الطهارة : Hadeeth No:476 Uthman b. 'Affan reported: The Messenger of Allaah (way sallAllaahu alayhi wa sallam) said: He who performed ablution well, his sins would come out from his body, even coming out from under his nails....