A Decree of Muharram or Firman of Muharram is any of a number of decrees or firmans issued by the Ottoman Empire in the Islamic month of Muharram. The most important of which, both issued by ‘Abdu’l-Hamid II during the decline of the Ottoman Empire, are:
Additionally, Decree of Muharram may refer to the Islamic tradition that it is unlawful (haraam) to go to war in the month of Muharram.