1 2 Historic House: The story behind that building with the words 'Happiness Is Submission to God' Archived 2020-07-09 at the Wayback Machine, Tucsonweekly.com, Accessed July 7, 2020 1 2 Musa: The Qur’anists. 2010, S. 18. ↑ Musa: Ḥadīth as Scripture. 2008, S. 100. ↑ Haddad und Smith: Muslim Minority Groups in American Islam.