The Book of Virtue, Enjoining Good Manners, and Joining of the Ties of Kinship
Ṣaḥīḥ Muslim 6631
إِنَّ شَرَّ النَّاسِ ذُو الْوَجْهَيْنِ الَّذِي يَأْتِي هَؤُلاَءِ بِوَجْهٍ وَهَؤُلاَءِ بِوَجْهٍ
inna sharra an-nāsi dhū al-wajhayni adh-dhī yaʾtī haʾulāʾi biwajhin wahaʾulāʾi biwajhin
Transliteration generated from the Arabic vowel marks
The full narration
Abu Huraira reported that he heard Allah's Messenger (ﷺ) as saying:The worst amongst people is one with the double face. He comes to some people with one face and to others with the other face
Source
Ṣaḥīḥ Muslim · 6631
Ṣaḥīḥ