During Sultan Muhammad Ali's reign, the Brunei Legal Code was also put into effect.
[4][5] He refused to permit the execution of his son, arguing that he alone has the authority to punish.
Pengiran Abdul Hakkul Mubin was enraged at the meaning that was left unsaid and killed everyone inside the palace.
[6] Sultan Muhammad Ali was then garroted by Pengiran Abdul Hakkul Mubin during Asr prayer on 16 November 1661.
Sultan Muhyiddin's planned successor, Pengiran Muda Bongsu, who had fled to Sambas, was asked to return to Brunei and granted the title of Raja Bendahara.