Another occurrence was the excommunication and the expulsion of the members of the household of ‘Abdu’l-Baha and the majority of the followers in the cities of Acre and Haifa, Palestine.
A few years after the departure [i.e. death] of the Holy Leaf Bahiyyih Khanum, sister of ‘Abdu’l-Baha, and after Shoghi Effendi was invested with the supreme and infallible power by the above-mentioned Declaration of Trust and By-Laws, by the National Spiritual Assembly of the Baha’is of the United States and Canada, the air of dissension appeared among the members of the household of ‘Abdu’l-Baha. His twin daughters Touba Khanum and Ruha Khanum with their families took up residence in Beirut, Lebanon, and the youngest daughter Munawar Khartum with her husband Aqa Ahmad Yazdi resided mostly in Europe and Egypt.
When the war [i.e. World War II] started, they were all obliged to return to Palestine, and ever since they have made their homes in Nazareth and on Mount Carmel, and none of them associate with Shoghi Effendi.
Practically all the family of ‘Abdu’l-Baha, including the two brothers and sisters of Shoghi Effendi and their husbands and wives, are either excommunicated or expelled from the community circle by Shoghi Effendi.
Reference:- ‘A Lost History Of The Baha’i Faith’