Sahih al-Bukhari, Hadith 6058 ⓘ
Narrated Abu Huraira: The Prophet said, "The worst people in the Sight of Allah on the Day of Resurrection will be the double faced people who appear to some people with one face and to other people with another face."
حَدَّثَنَا عُمَرُ بْنُ حَفْصٍ، حَدَّثَنَا أَبِي، حَدَّثَنَا الأَعْمَشُ، حَدَّثَنَا أَبُو صَالِحٍ، عَنْ أَبِي هُرَيْرَةَ ـ رضى الله عنه ـ قَالَ قَالَ النَّبِيُّ صلى الله عليه وسلم " تَجِدُ مِنْ شَرِّ النَّاسِ يَوْمَ الْقِيَامَةِ عِنْدَ اللَّهِ ذَا الْوَجْهَيْنِ، الَّذِي يَأْتِي هَؤُلاَءِ بِوَجْهٍ وَهَؤُلاَءِ بِوَجْهٍ " .
also referenced under: Book 78, Hadith 88 (In-Book) & Volume 8, Book 73, Hadith 84 (USC-MSA)