xD I don't even know if the manga said it myself was long ago since i read that fight though i always wanted to re-read the manga for the sake of it.I don't know, the people of Narutopedia said so. And I think I didn't watch the anime version of the fight and I forgot kinda everything of the fight in the manga. Need to look back at it.
But are you sure, the manga said that Sasuke could distinguish Kage Bunshin?