Arabic hadith text
حَدَّثَنَا إِسْمَاعِيلُ قَالَ‏:‏ حَدَّثَنِي مَالِكٌ، عَنْ أَبِي الزِّنَادِ، عَنِ الأَعْرَجِ، عَنْ أَبِي هُرَيْرَةَ، أَنَّ رَسُولَ اللهِ صلى الله عليه وسلم قَالَ‏:‏ مِنْ شَرِّ النَّاسِ ذُو الْوَجْهَيْنِ، الَّذِي يَأْتِي هَؤُلاَءِ بِوَجْهٍ، وَهَؤُلاَءِ بِوَجْهٍ‏.‏
Translation

Abu Hurayra reported that the Messenger of Allah, may Allah blesshim and grant him peace, said, "The worst person is someone who is two-faced.He is the person who comes to one group of people with one face and anothergroup of people with another face."