(1) بَابُ قَوْلُ اللَّهِ تَعَالَى: {يَا أَيُّهَا النَّاسُ إِنَّا خَلَقْنَاكُمْ مِنْ ذَكَرٍ وَأُنْثَى وَجَعَلْنَاكُمْ شُعُوبًا وَقَبَائِلَ لِتَعَارَفُوا إِنَّ أَكْرَمَكُمْ عِنْدَ اللَّهِ أَتْقَاكُمْ}
Narrated Abu Huraira:
Allah's Messenger (ﷺ) said, "You see that the people are of different natures. Those who were the best in the pre-lslamic period, are also the best in Islam if they comprehend religious knowledge. You see that the best amongst the people in this respect (i.e. ambition of ruling) are those who hate it most. And you see that the worst among people is the double faced (person) who appears to these with one face and to the others with another face (i.e a hypocrite).
Reference: Sahih al-Bukhari 3493, 3494
In-book reference: Book 61, Hadith 5
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 4, Book 56, Hadith 699