An obiter dictum is an expression of opinion made by a Judge in passing in the course of delivering judgment, but which does not decide the live issues in the matter. The ratio decidendi on the other hand, is the principle of law upon which a particular case is decided. It has the binding force of precedent. All lower Courts are bound by the ratio decidendi of the decision of a higher Court. The ratio decidendi has also been defined as “the reason for deciding.”
– Kekere-Ekun JSC. CITEC v. Francis (2021) – SC.720/2017