Islam immigrants in the West to assimilate has been criticized. Islam Islam () is an Abrahamic monotheistic religion which teaches that there is only one God (Allah), and that Muhammad is the messenger of God. It is the world's second-largest religion with over 1.8 billion followers or 24.1% of the world's population, most commonly known as Muslims. Muslims make up a majority of the population in 50 countries. Islam teaches that God is merciful, all-powerful, unique and has guided humankind through prophets, revealed scriptures and natural signs. The primary scriptures of Islam are the Quran, viewed by Muslims as the verbatim
Apostasy in Islam to Islam and later rejects the religion is called a "murtad milli". The jurist Imam Ibnul Humam (d. 681 AH) wrote in his book "Fathul Qadir": A person is considered apostate if he or she converts from Islam to another religion. Apostasy can occur even if one does not formally renounce Islam. Those who were forced to denounce Islam under conditions of duress or out of fear of persecution or during war (Taqiyya or Kitman) are not considered apostates. Evidence of apostasy in Islam, according to Reliance of the Traveller, a 14th-century manual of the Shafi'i school of jurisprudence (Fiqh),