My understanding is that usually the references like this are to the Muhammad, the influential prophet in Islam, and Aisha; as social norms on age shifted over the centuries, her role became controversial.
Aisha (Arabic: عائشة بنت أبي بكر, romanized: ʿĀʾishah bint Abī Bakr; /ˈɑːiːʃɑː/,[1][2] also US: /-ʃə, aɪˈiːʃə/,[3] UK: /ɑːˈ(j)iːʃə/;[4] c. 613/614 – July 678) was Islamic prophet Muhammad's third and youngest wife.[5][6] In Islamic writings, her name is thus often prefixed by the title "Mother of the Believers" (Arabic: أمّ المؤمنين, romanized: ʾumm al-muʾminīn), referring to the description of Muhammad's wives in the Qur'an.[7][8][9]
Little is known about the early life of Aisha. A preponderance of classical sources converge on Aisha being 6 or 7 years old at the time of her marriage, and 9 at the consummation; her age has become a source of ideological friction in modern times.[10]
If so, Stable Diffusion's portrayal probably isn't terribly-relevant, as the character that Stable Diffusion came up with appears to be a boy.