No such option exists.
Since the whole point of JPG compression is to represent the photo in fewer bytes by compressing "similar" pixels, of course edited photos will have a different size than the original. I would strongly advise you to abandon the idea of writing an edited JPG to be the same file size as the original, as this idea is not sensible. Don't waste your time trying to achieve this. Instead choose a Quality Level/Compression that you are happy with and use that.