The Messenger of Allah ﷺ said, "Among the worst of people in the sight of Allah on the Day of Resurrection is the two-faced person."
حدثنا هناد حدثنا أبو معاوية عن الأعمش عن أبي صالح
قال رسول الله ﷺ إن من شر الناس عند الله يوم القيامة ذا الوجهين
Bukhari also recorded it in the Book of Manners, chapter on what has been said about the two-faced person, hadith no. 6058, from the hadith of Amash with this wording. Muslim also narrated it, hadith no. 2526, through another route from Abu Hurairah with this wording.On this subject there are also narrations from Ammar [Abu Dawud, hadith no. 4873] and Anas [Hannad in Zuhd, hadith no. 1137, and Ibn Abu Dunya in Samt, hadith no. 282, and others besides them].