Ruling on taking off hijaab when travelling abroad

It is not permissible for you or for
any other woman to take off your hijaab in the kaafir countries, just
as that is not permissible in any Muslim country. It is obligatory to
observe hijaab in front of non-mahram males whether they are Muslims
or kaafirs; indeed it is more obligatory in the case of kaafirs, because
they have no faith to keep them from doing that which Allaah has forbidden. 

It is not permissible for you or any
other woman to obey parents or anyone else in doing that which Allaah
and His Messenger

(peace and blessings of Allaah be upon him) have forbidden. Allaah says
in Soorat al-Ahzaab (interpretation of the meaning): 

“And when you ask (his wives) for anything
you want, ask them from behind a screen, that is purer for your hearts
and for their hearts”

[al-Ahzaab 33:53]

In this aayah Allaah explains that for women to observe
hijaab and be screened from non-mahram men is purer for the hearts of
everyone. And Allaah says in Soorat al-Noor (interpretation of the meaning):

“And tell the believing women to lower
their gaze (from looking at forbidden things), and protect their private
parts (from illegal sexual acts) and not to show off their adornment
except only that which is apparent (like both eyes for necessity to
see the way, or outer palms of hands or one eye or dress like veil,
gloves, headcover, apron), and to draw their veils all over Juyoobihinna
(i.e. their bodies, faces, necks and bosoms) and not to reveal their
adornment except to their husbands, or their fathers, or their husband’s
fathers…”

[al-Noor 24:31]

And the face is the greatest part of
beauty or adornment.