‏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....

‏اللباس والزينة‏ : Hadeeth No:5303 This hadith has been narrated on the authority of Mansur without the story pertaining to Umm Ya'qub....