9. [9/108] al-Kafi: Muhammad b. Ismail from al-Fadhl b. Shadan AND Abu Ali al-Ash`ari from Muhammad b. Abd al-Jabbar all together from Safwan b. Yahya from Abd al-Rahman b. al-Hajjaj who said: I asked Aba Ibrahim عليه السلام about a girl who has not attained puberty – when is it incumbent on her to cover her head from the one one with whom she does not share any relation? and when is it obligatory on her to veil her head fully in the prayer? He said:

she does not have to cover her head until the prayer starts becoming prohibited on her [i.e. she begins menstruating].