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It is a quotation so it goes in quotation marks. It is not the function of punctuation to indicate when a speech was uttered. If you need to make that clear, then you must do so in the text.
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#4: Attribution notice removed
Source: https://writers.stackexchange.com/a/26698 License name: CC BY-SA 3.0 License URL: https://creativecommons.org/licenses/by-sa/3.0/
#3: Attribution notice added
Source: https://writers.stackexchange.com/a/26698 License name: CC BY-SA 3.0 License URL: https://creativecommons.org/licenses/by-sa/3.0/