Out of curiosity, what do you do when you put a quote in Chinese from a Chinese author inline in Japanese text? Are you expected to write it using the Chinese f

Out of curiosity, what do you do when you put a quote in Chinese from a Chinese author inline in Japanese text? Are you expected to write it using the Chinese forms of the characters, or do you write them using the Japanese forms? Edit: I mean what is the expected (grammatically correct) way to do it if you were writing with pen on paper.