defence

1) If the enemy is inside his country, he is not gathering around borders, there is no
effect on the Muslim country, and borders are full of soldiers, then jihad in such a
situation is only Fard Kifaya, and permission is required. This is because obedience to
parents and husband is Fard Ayn and jihad is merely Fard Kifaya. Fard Ayn is
advanced over Fard Kifaya.
2) If the enemy attack a Muslim border or enter any Islamic land, then as we mentioned
before, jihad becomes Fard Ayn upon the entire population of the country and all
around it. In this situation permission is not required. There is no permission for
anyone from the other, even the child goes out without the permission of his parents,
the wife without the permission of her husband, and the debtor without the permission
of his creditor.
The situation of the permission from parents and husband not being required is
sustained until the enemy is expelled from the Muslim land, or when there is the
accumulation of sufficient numbers to expel the enemy even if all the Muslims in the
earth are assembled.
Jihad, when it is Fard Ayn, takes precedence over the obedience to parents, which
is also Fard Ayn. Because, jihad is the protection of the religion, and obedience to
parents, is caring for the individual. That is, jihad (with the parents grief and distress it
may entail) is protection of the religion which has priority over the protection of the
individual. Moreover, Jihad itself is the destruction of the mujahid's self if he is martyred.
In which case the protection of the religion is assured. While it is not certain that one's
parents would be distressed. The certain takes precedence over the uncertain.
An Example of Fard Ayn and Fard Kifaya
For instance, some people are walking along the sea shore and amongst them is a
group of good swimmers. They see a child about to drown. It shouts "save me!", and
nobody moves towards him. One of the swimmers wants to move to save him but his
father forbids him. Can any scholar in this day and time say that he must obey his father
and let the child drown?
This is the example of Afghanistan today. She is crying out for help, her children
are being slaughtered, her women are being raped, the innocent are killed and their
corpses scattered, and when sincere young men want to move to save and assist them they
are criticized and blamed: "how could you leave without your parents' permission?"