A daughter of Al-Arqam founder Ashaari Muhammad has made shocking claims that a Global Ikhwan Service and Business Holdings (GISBH) leader had abused and sexually assaulted her and that the leader was abetted by her own siblings.

Ummu Atiyah Ashaari, 41, claimed that while she was living in Jordan, the GISBH leader had wanted to forcibly make her his fourth wife, claiming that the order for their marriage supposedly came from her late father, known as Abuya among his followers, and the Prophet.

She said at the time, she had already been...