[2] Hadith - Four signs of a pure hypocrite: Abdullah ibn Amr reported: The Messenger of Allah, peace and blessings be upon him, said, “There are four signs that make someone a pure hypocrite and whoever has them has a characteristic of hypocrisy until he abandons it: (1) when he speaks he lies; (2) when he makes a covenant he is treacherous; (3) when he makes a promise he breaks it; and (4) when he argues he is wicked.”[3] The Quran has many verses discussing munāfiqūn, referring to them as more dangerous to Muslims than the worst non-Muslim enemies of Islam.
[4] They are described as seeking the subversion of Islam from within by dissembling a false allegiance.
[6] In Surah An-Nisa, verses 88-89 of the Quran, hypocrites are threatened with death.
These are: Salih Al-Munajjid in his book Nifaq, as a remedy for Nifaq, says to do 10 things according to Quran and Sahih Hadith, Anas bin Malik narrated that : Allah's Messenger said: "Whoever performs Salat for Allah for forty days in congregation, catching the first Takbir, two absolutions are written for him: absolution from the Fire, and absolution from hypocrisy.
"Reference : (Jami` at-Tirmidhi 241 In-book reference : Book 2, Hadith 93 Salih Al Munajjid told Muslims to deal with hypocrites as follows according to the Quran and Sahih Hadith: