‏البر والصلة والآداب‏ : Hadeeth No:6300 Abu Huraira reported Allaah's Messenger (sallAllaahu alayhi wa sallam) as saying: The worst amongst the people is the double-faced one; he comes to some people with one face and to others with the other face....

‏الجهاد والسير‏ : Hadeeth No:4339 Abu Muhammad, the freed slave of Abu Qatada reported on the authority of Abu Qatda and narrated the hadith....