Fattah, Khaled (28 de octubre de 2009). «Yemen: A slogan and six wars»(html). Conflicts Forum(en inglés). Archivado desde el original el 15 de noviembre de 2009. Consultado el 18 de abril de 2018. «Zaydism is one of Yemen’s three main branches of Shi’ism, together with Twelver Shi’ism and the Isma’ili branch. It is distinguished from the other two branches by being confined to Yemen and closer to Sunni Islam than other strands of Shi’ism. Zaydism is so close to the Sunni strand that some Shi’ite groups refer to it as the fifth school of Sunni jurisprudence. It shares, however, one of the important aspects of the Shi’ite belief: an imamate vested in descendants of the Prophet Muhammad.»
Fattah, Khaled (28 de octubre de 2009). «Yemen: A slogan and six wars»(html). Conflicts Forum(en inglés). Archivado desde el original el 15 de noviembre de 2009. Consultado el 18 de abril de 2018. «Zaydism is one of Yemen’s three main branches of Shi’ism, together with Twelver Shi’ism and the Isma’ili branch. It is distinguished from the other two branches by being confined to Yemen and closer to Sunni Islam than other strands of Shi’ism. Zaydism is so close to the Sunni strand that some Shi’ite groups refer to it as the fifth school of Sunni jurisprudence. It shares, however, one of the important aspects of the Shi’ite belief: an imamate vested in descendants of the Prophet Muhammad.»