Does insulting someone by saying "You are a dog a thousand times" count as a thousand bad deeds or one bad deed?

Cursing a Muslim unjustly is forbidden by the consensus of the Ummah, and its perpetrator is a fasiq (transgressor). Indeed, some scholars have considered it a major sin. Multiple hadiths have been reported warning against cursing a Muslim, describing its perpetrator as a transgressor, on the verge of destruction, and a devil. The statement "You are a dog a thousand times" is considered only one curse, because the criterion is the repetition of the word, not following the word with a specific number.