‏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....

‏الطلاق : Hadeeth No:3553 Sahl b. Sa'd al-Sa'idi reported that'Uwaimir al-'Ajlani came to 'Asim b. 'Adi al-Ansari and said to him. Tell me about a person who finds a man with his wife; should he kill him, and be killed In retaliation; or how should he act? 'Asim, ask for me (religious verdict about it) from Allaah's Messenge...