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Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
muslim:2526e – Ḥarmalah b. Yaḥyá > Ibn Wahb > Yūnus > Ibn Shihāb > Saʿīd b. al-Musayyab > Abū Hurayrah

You will find the worst amongst the people one having double face. He comes to some people with one face and to the others with the other face.  

مسلم:٢٥٢٦e – حَدَّثَنِي حَرْمَلَةُ بْنُ يَحْيَى أَخْبَرَنِي ابْنُ وَهْبٍ أَخْبَرَنِي يُونُسُ عَنِ ابْنِ شِهَابٍ حَدَّثَنِي سَعِيدُ بْنُ الْمُسَيَّبِ عَنْ أَبِي هُرَيْرَةَ أَنَّ رَسُولَ اللَّهِ ﷺ ح وَحَدَّثَنِي زُهَيْرُ بْنُ حَرْبٍ حَدَّثَنَا جَرِيرٌ عَنْ عُمَارَةَ عَنْ أَبِي زُرْعَةَ عَنْ أَبِي هُرَيْرَةَ قَالَ

قَالَ رَسُولُ اللَّهِ ﷺ تَجِدُونَ مِنْ شَرِّ النَّاسِ ذَا الْوَجْهَيْنِ الَّذِي يَأْتِي هَؤُلاَءِ بِوَجْهٍ وَهَؤُلاَءِ بِوَجْهٍ