Sure there is: Apocalypse 12:14 and Luke 1:28. However, the author gives you more than that: he explains how the entire mindset of Protestant textproofing is an error and a misunderstanding of the scripture.
Rev 12 doesn’t mention Mary or any assumption of Mary.....at all. It does mention the child (Jesus) being caught up to the throne of heaven. It does mention the nation going into the wilderness due to persecution.
Luke 1:28 says absolutely nothing about any assumption or immaculate conception. The words don’t come up, the concept doesn’t come up, nothing about it at all comes up.
I’ve read Hahn on this. He is so totally unconvincing that I’m concerned for the viability of his rationality.