Munafiq

In Islam, the munafiqun ('hypocrites', منافقون, singular منافق munāfiq) or false Muslims or false believers are a group decried in the Quran as outward Muslims who were inwardly concealing disbelief (“kufr”) and actively sought to undermine the Muslim community. Munafiq is a person who in public and in community shows that he is a Muslim but rejects Islam or propagates against it either in his heart or among the enemies of Islam. The hypocrisy itself is called nifāq (نفاق). Hypocrisy towards God regarding actual faith. (Q2:8) and (Q2:14) Hypocrisy towards the tenets of faith: for example, somebody may believe in God, Judgment Day, accounting, scales of deeds and Hellfire (with an uncertainty and doubt) but not fear them at all (in actual) or not refrain from committing sins because of them. Yet he claims, "I fear God". Hypocrisy towards the deeds: Not performing obligatory works properly. Hypocrisy towards others: somebody is double-faced and double-tongued. He praises someone in their presence, then, behind their back, he denounces them and tries to cause them pain and harm. 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.” The Quran has many verses discussing munāfiqūn, referring to them as more dangerous to Muslims than the worst non-Muslim enemies of Islam. In the Quran, the munafiqun are berated for their disloyalty towards the Muslims. They are described as seeking the subversion of Islam from within by dissembling a false allegiance. According to Surah 9:107-108 there was even a "mosque" of dissent that they built; this "mosque" was burned down by Muhammad. The 63rd chapter (surah) of the Quran is titled Al-Munafiqun.