In March 1947, the first Pan-Malayan Islamic conference was held at Madrasah Ma'ahad al-Ehya as-Sharif, Gunung Semanggol,
Perak. The conference was organized by the
Parti Kebangsaan Melayu Malaya (PKMM) led by Dr.
Burhanuddin al-Helmy to discuss economic problems faced by the Malay-Muslim community and to encourage greater political activism among Islamic groups. As a result, the Supreme Religious Council of Malaya or
Majlis Agama Tertinggi Malaya (MATA) was formally established. UMNO representatives, alarmed by the militant tone of the Islamists, reported to party president Dato' Onn Jaafar, who famously warned:
"Hubaya, hubaya! Bahaya dari gunung!" ("Beware, beware! Danger from the mountain!"), referring to the MATA leadership at Gunung Semanggol. Hizbul Muslimin also expressed solidarity with global Muslim struggles, notably in Palestine and Patani, sending protest letters to the United Nations and urging Malay rulers to act. However, the British colonial authorities viewed the party as a subversive movement with suspected ties to leftist groups such as the
Communist Party of Malaya (CPM). Following the declaration of the
Malayan Emergency in June 1948, Hizbul Muslimin was outlawed under the Emergency Ordinance, and many of its leaders were arrested. The party ceased to operate soon thereafter. ==Dissolution aftermath==