GWYNNE, R. W. The Neglected Sunnah: Sunnat Allah (The Sunnah of God). American Journal of Islam and Society, USA, v. 10, n. 4, p. 455–463, 1993. DOI: 10.35632/ajis.v10i4.2471. Disponível em: https://mail.ajis.org/index.php/ajiss/article/view/2471. Acesso em: 10 jan. 2025.