that has been hugely disputed.
btw that's not in the quran, someone who claims to have done religious studies at penn state would know the difference between hadith and quran.
There are other hadith sources which says that Aisha was past puberty when she married.
her age is hugely disputed, one of the reasons why early transmitters of the hadith may have reduced her age down as much as possible is because in their eyes it adds more legitimacy to the "purity" in her beleifs because she would have been with muhammed from a young age. And have more credible hadith.