"Narrated ‘Abdullah bin ‘Amr:
The Prophet said, "Whoever has the following four (characteristics) will be a pure hypocrite and whoever has one of the following four characteristics will have one characteristic of hypocrisy unless and until he gives it up.
1. Whenever he is entrusted, he betrays.
2. Whenever he speaks, he tells a lie.
3. Whenever he makes a covenant, he proves treacherous.
4. Whenever he quarrels, he behaves in a very imprudent, evil and insulting manner."
From Volume 1, Book 2, Number 33 of the Hadith, narrations of the words and deeds of Muhammad gathered in the 8th and 9th centuries by Muslim scholar Muhammad ibn Ismail al-Bukhari. (Pictured: Imam Bukhari Mausoleum in Samarkand, Uzbekistan)