[1]. The Prophet Muhammad (ﷺ) said: "Whoever has the following four (characteristics) is a pure hypocrite and whoever has one of the following four characteristics, have one characteristic of hypocrisy unless and until he gives it up:
a. When he is entrusted, he betrays (proves dishonest).
b. When he speaks, he lies.
c. When he makes a covenant or promise, he proves treacherous breaking the promise.
d. When he quarrels, he behaves in a very imprudent, evil, and insulting manner."
He also said: "The worst people before Allāh on the Day of Judgment will be the double-faced people who appear to some people with one face and to other people with another face."