She was 6, but he magnanimously refrained from using her sexually, until she was 9.
Not quite; he just refrained from intercourse with her..
In the interim, he regularly praciticed "thighing" with her, something Muslims still commonly & routinely practice today (though some few Muzzie religious authorities condemn it) with young children of either sex.
In MadMo's case, however, those who condemn it still excuse him on the grounds that, 'he, as "The Prophet", was devinely granted super-human control, so never climaxed nor recieved gratification from the act'!!
The ones who do condemn it are distinctly a minority, as the rest outright endorse the practice.
I don't feel it appropriate to more closely describe what it is on the forum. Either look it up in Google, or as a last resort, ask privately.