What is the meaning of "marfūʿ ʿalā al-ḥikāyah" (raised for the sake of narration) with an illustrative example?

In grammar, "al-hikayah" (citation/quotation) refers to a word retaining its original vocalization (vowel or sukun) without being affected by inflecting factors. It means repeating the word in its original form without changing its letters or vocalizations. "Marfu' 'ala al-hikayah" (nominated by citation) means that the word was originally in the nominative case and was cited in that state, even if preceded by factors causing it to be in the accusative or genitive case. Its inflectional mark is then considered to be implicit due to citation. An example of this is the name "Fatahallahu," whose end remains in the nominative case with a clear dammah in all grammatical contexts, and its inflection is considered to be implicit due to citation.