Imam Al-Nawawi’s Riyad-us-Saliheen
Condemnation of Double-faced People
Allah, the Exalted, says:
“They may hide (their crimes) from men, but they cannot hide (them) from Allah; for He is with them (by His Knowledge), when they plot by night in words that He does not approve. And Allah ever encompasses what they do.” (4:108)
1540. Abu Hurairah (May Allah be pleased with him) said: The Messenger of Allah (sallallaahu alayhi wa sallam) said, “People are like ores. Those who were excellent in the Days of Ignorance are excellent in Islam provided they acquire the knowledge and understanding of the religion. You will find the best people in it (Islam) those who had a deep hatred (for leadership). You will find the worst among the people a double-faced person who appears to some people with one face and to others with another face.”
[Al-Bukhari and Muslim].
1541. Muhammad bin Zaid reported: Some people said to my grandfather, ‘Abdullah bin ‘Umar (May Allah be pleased with them): We visit our rulers and tell them things contrary to what we say when we leave them. `Abdullah bin `Umar (May Allah be pleased with them) replied: “In the days of the Messenger of Allah (sallallaahu alayhi wa sallam), we counted this act as an act of hypocrisy.”