What is the rule that governs interpreting the-general-that-has-been-specified (al-mujmal) in light of the-one-that-clarifies-it (al-mubayyin), similar to interpreting the-absolute (al-mutlaq) in light of the-qualified (al-muqayyad) when the cause and ruling are the same?

The Mujmal (Ambiguous): This refers to something that can bear two or more meanings without one being preferred over the others. The ruling regarding it is to suspend its use as evidence until its intended meaning becomes clear.

The Mubayyan (Clarified): This is the mujmal speech once its meaning has been made clear.

The Mutlaq (Unrestricted): This is a word indicating a general, unspecified individual, not limited by a verbal restriction, such as the word "رقبة" (a slave/neck) in the expiation for ẓihār (a pre-Islamic form of divorce).

The Muqayyad (Restricted): This is when a meaning is added to its original sense, such as the phrase "رقبة مؤمنة" (a believing slave/neck).

The unrestricted is interpreted in light of the restricted (yuḥmal al-muṭlaq ʿalā al-muqayyad) if their ruling and reason are the same. The general rule is to interpret the unrestricted by the restricted if there are two texts, one unrestricted and the other restricted, and they both concern a single ruling and a single reason.