Question: Why does wiping over footgear appear within a work on creed?
Answer: It illustrates adherence to established prophetic reports and became a recognizable point in historical discussions of Sunni identity. Personal preference is not the measure of legal proof.
وَنَرَى الْمَسْحَ عَلَى الْخُفَّيْنِ فِي السَّفَرِ وَالْحَضَرِ كَمَا جَاءَ فِي الْأَثَرِ
We affirm wiping over footgear while traveling and at home, as reported in tradition.
Follow-up: Does this single matter settle every jurisprudential disagreement about ablution?
Clarification: No. Affirming one ruling based on its evidence is distinct from deriving all detailed rules of purification. A single point should not be extended beyond its scope.