Sixth Pillar of Islam Muslims believe there are precisely five pillars of Islam, since in a hadith, Muhammad listed only five major pillars of the faith. Traditionalists say that no sixth pillar should be added, because changing the pillars would be altering the religion and its beliefs, therefore one who believes that there is a sixth pillar is committing a sin. Thus, Sunnis believe that a "six pillar of faith" is outside the folds of mainstream Islam. The sixth pillar of Islam is not included in the Sunni way of life. Also, a minority among Sunni scholars sometimes refers to the duty of jihad
Islam in the United States into prison as non-Muslims. He also says that 80% of the prisoners who "find faith" while in prison convert to Islam. These converted inmates are mostly African American, with a small but growing Hispanic minority. Waller also asserts that many converts are radicalized by outside Islamist groups linked to terrorism, but other experts suggest that when radicalization does occur it has little to no connection with these outside interests. There were calculated to be 2.595 million Muslim adherents across the United States in 2010. Islamic populations are 0.6% of the US population per Fareed Zakaria quoting Pew Research Center, 2010.