Fatwas That Change with Time, Place, and Circumstances

Among the most celebrated and widely cited sections of I'lam al-Muwaqqi'in is Ibn al-Qayyim's systematic treatment of how legal rulings legitimately change when their underlying conditions change. This is not relativism or legal flexibility for its own sake; it is a principled recognition that many rulings in Islamic jurisprudence are tied to specific causes, conditions, customs, or circumstances, and that when those underlying factors change, the ruling itself may properly change. The Shariah itself does not change; what changes is the application of a stable set of principles to a new set of facts. Ibn al-Qayyim anchors this discussion firmly in the classical tradition, showing that the phenomenon of changing rulings is not a modern innovation but a feature of the scholarship of the earliest jurists.

Ibn al-Qayyim identifies several categories of factors whose change can legitimately alter a legal ruling. The effective cause ('illa) of a ruling is the most fundamental: when the reason for which a ruling was established no longer applies, or applies differently, the ruling changes accordingly. Custom ('urf) plays a central role as well, because many rulings that the early scholars issued were premised on the customs of their time and place. When a scholar issues a ruling about commerce, social arrangements, or conduct and that ruling is founded on a particular custom, someone living in a different time or place where customs differ cannot simply apply the old ruling mechanically; he must ask whether the custom underlying it is present in his own context. Intention and purpose (niyyah and maqsad) similarly affect rulings, as Ibn al-Qayyim illustrates with extensive examples.

The historical examples Ibn al-Qayyim deploys are drawn from the entire tradition of Islamic jurisprudence. He documents cases in which Imam Malik gave one ruling in Madinah and a different ruling would have applied elsewhere, cases in which al-Shafi'i issued his 'old' school rulings in Iraq and revised them entirely when he encountered the different conditions of Egypt, and cases in which Ahmad ibn Hanbal's recorded opinions differ from one another precisely because they were given in response to different circumstances. These are not contradictions in the scholars' thought; they are evidence that the great jurists understood the contextual nature of many legal determinations and applied the sources differently as contexts demanded.

The implications of this section for contemporary Islamic legal thought are substantial, which explains why it has been so widely referenced in modern fiqh discussions. Ibn al-Qayyim is not arguing that scholars can change rulings at will or that the law is merely a reflection of changing social norms. His argument is more precise and more powerful: the sources of Islamic law are complete and unchanging, but correctly applying them to new situations requires the scholar to understand not only the rule but the reasoning behind it, not only the text but the principle the text serves. A scholar who mechanically applies an old ruling without asking whether its underlying conditions still hold is not being more faithful to the tradition; he is being less faithful to it, because he is applying the form of the law while ignoring its spirit. Ibn al-Qayyim insists that rigorous attention to context is itself a requirement of rigorous legal scholarship.