‏البر والصلة والآداب‏ : Hadeeth No:6302 Abu Huraira reported Allaah's Messenger (sallAllaahu alayhi wa sallam) as saying: You will find the worst amongst the people one having double face. He comes to some people with one face and to the others with the other face....

‏الصلاة : Hadeeth No:1434 Muhammad reported: I asked Anas whether the Messenger of Allaah (sallAllaahu alayhi wa sallam) observed Qunut in the dawn prayer. He said: Yes, (he did so) after the ruku', for a short while....