Iran's Nuclear Fatwa: Between Doctrine and Deterrence
Author: Anonymous
Pascal Lottaz
Pascal’s Substack
The role of Ayatollah Khamenei's Fatwa against nuclear weapons is an open question that merits attention. In an anonymous letter, an Iranian colleague analyses the situation.
The question of whether Ayatollah Khamenei’s stance on nuclear weapons constitutes a formal fatwa (Islamic legal ruling) or merely a political statement has long been debated. Officially, the Iranian government—including the Supreme Leader’s office and the Ministry of Foreign Affairs—refers to this position as a fatwa prohibiting the production and use of nuclear weapons. This claim has also been presented in communications with international bodies such as the IAEA. In public speeches, Khamenei has stated: “We do not seek nuclear weapons, because we consider them forbidden—haram.”
Yet the supposed nuclear fatwa is absent from his formal compendia of legal opinions online. It exists primarily in speeches and official statements. Critics contend that without a documented legal opinion grounded in Islamic jurisprudence, this position operates more as a political or moral pronouncement than a juridical fatwa.
That said, in Shi’a legal tradition, a fatwa need not appear in book form to be valid—any public statement by a qualified authority declaring a normative judgment can be considered a fatwa. Thus, the status of Khamenei’s declaration depends on interpretive framing: to the Islamic Republic, it is a binding ruling; to skeptics, it remains a strategic assertion with limited doctrinal weight.