Praise be to Allaah.
Jihaad by the sword and with
other weapons is not obligatory on women. It was narrated that
‘Aa’ishah said: “I said, ‘O Messenger of Allaah, do women have to
do any kind of jihaad?’ he said, ‘Yes, jihaad in which there is no
fighting – Hajj and ‘Umrah.’” – Narrated by Imaam Ahmad, 24794).
Because men are responsible for defending women. Hence it is not
permissible to draft them into the army like men, because of the bad
consequences that result from that. The state of affairs in countries
which have allowed that clearly demonstrate the harmful effects to which
this leads. But if the army needs nurses to tend the soldiers’ wounds
and there are women who can do this well, then their services may be used,
so long as due attention is paid to the guidelines of sharee’ah, and
proper Islamic etiquette is observed.
Similarly, it is not permissible for women to work in the police and other
security organizations if this work has to do with men. If, however, it
has to do with women, such as a women’s division in the police force to
deal with women, or supervision of women prisoners in jails, or inspecting
women in airports, and so on, then this is permissible and may indeed be
necessary. They should be employed in such cases so that women will not be
forced to mix with men and uncover themselves in front of them.
Wilaayat
al-Mar’ah fi’l-Fiqh al-Islamiyyah, p. 688