Muhammad embodies Islam, for he was the conduit through which Allah reveals the superior religion, so we again use him to test Islam. Fruit inspection says that if a prophet fails it, then his more abstract claims are suspect.
Muhammad ni kielelezo cha uislam kwa kuwa alikuwa alikuwa ni mfereji kupitia huo Allah alifunua dini bora zaidi, kwa hiyo tunamtumia tena kuupima uislam.