ENOfficial
Abu Hurayra reported that the Prophet, may Allah bless him and grant him peace, said, "You will find that the worst of people in the sight of Allah on the Day of Rising will be the two-faced person who presents one face to a group of people and another face to a different group of people."
Source: sunnah.com
Other translations
Arabic
حَدَّثَنَا مُحَمَّدٌ، قَالَ: حَدَّثَنَا عُمَرُ بْنُ حَفْصٍ، قَالَ: حَدَّثَنَا أَبِي، قَالَ: حَدَّثَنَا الأَعْمَشُ، قَالَ: حَدَّثَنَا أَبُو صَالِحٍ، عَنْ أَبِي هُرَيْرَةَ، عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ: تَجِدُ مِنْ شَرِّ النَّاسِ يَوْمَ الْقِيَامَةِ عِنْدَ اللهِ ذَا الْوَجْهَيْنِ، الَّذِي يَأْتِي هَؤُلاَءِ بِوَجْهٍ، وَهَؤُلاَءِ بِوَجْهٍ.
sunnah.com