If a woman wants to renew her wudoo’ inside the Haram in the special places, because of the hardship involved in going to the washrooms, especially during the days of Hajj and ‘umrah in Ramadan, what should she do? If she is in the areas that are only for women, men will be passing in front of her, so when she is washing her arms, she can put her hands under her sleeves. Is it permissible when wiping her head to wipe the front part only, and then pass her hands over her head cover? Please advise me clearly about the way in which she can do wudoo’ in this situation.

Praise
be to Allah

If a woman has no choice but to do wudoo’ in a place where
men are passing by, then she can cover herself by having another woman stand
in front of her to protect her from passing glances, or with a screen or
cover held up by her sister, or she can turn her back on passers-by in such
a way that men will not be able to see whatever she uncovers when doing
wudoo’. 

As for putting her hand into her sleeve, that will not
properly accomplish the washing of the arms, because what is required is for
water to flow over the part that is being washed and reach every part of it,
and that is not possible if she washes her arms when they are inside the
sleeves. 

With regard to wiping the head, there is nothing wrong with
wiping the front part of the head, then completing the wiping over the head
cover, because a concession allowing a woman to wipe over her head cover was
granted by a number of the scholars, especially if there is a need to do
that, as has been explained previously in fatwa no.
139719.

Shaykh al-Islam Ibn Taymiyah (may Allah have mercy on him)
said:

With regard to a woman wiping over a head cover that goes
around her chin, two views have been narrated: 

The first view is that it is not permissible, because the
texts which grant the concession only apply certainly to men, and there is
some uncertainty as to whether they apply to women. 

The second view is that it is permissible, and this is more
likely to be correct, because of the general meaning of the words, “wipe
over the khuffayn [leather socks] and the head cover”. Women are included in
these words along with men, just as they are included with regard to wiping
over the khuffayn. 

Imam Ahmad and Ibn al-Mundhir narrated from Umm Salamah, the
wife of the Prophet (blessings and peace of Allah be upon him) that she used
to wipe over her head cover. If she had not known that from the Messenger of
Allah (blessings and peace of Allah be upon him) by hearing a statement to
that effect from him, she would not have done it. End quote. 

Moreover, it is permissible for a man to wipe his head from
over his headgear, so it is permissible for women as for men. 

And it is permissible to wear something on the head, and it
is usually difficult to remove it, so it is likened to a man’s turban or
head cover.

And it is more appropriate that this should be the case,
because the woman’s head cover covers more than the turban or head cover of
a man, and it is more difficult to remove it, and her need for it is greater
than her need for the khuffayn. 

End quote from Sharh al-‘Umdah, Kitaab at-Tahaarah, p.
265 

See also the answer to question no.
148129 and the answer to question no. 72391. 

We have previously described how a woman should wipe her head
when doing wudoo’ when it is easy to do so, in the answer to question no.
112171 

And Allah knows best.