Praise be to Allaah.
In order for a marriage
contract to be valid it should be done by the woman’s guardian or
representative. The woman does not have the right to give herself in
marriage, because the Prophet (blessings and peace of Allah be upon him)
said: “There is no marriage except with a guardian.” Narrated by Abu Dawood,
2085; al-Tirmidhi, 1101; Ibn Maajah, 1881, from Abu Moosa al-Ash ‘ari.
Classed as saheeh by al-Albaani in Saheeh at-Tirmidhi.
And he (blessings and peace
of Allah be upon him) said: “Any woman who gets married without the
permission of her guardian, her marriage is invalid, her marriage is valid,
her marriage is invalid.”
Narrated by Ahmad, 24417; Abu
Dawood, 2083; at-Tirmidhi, 1102. Classed as saheeh by al-Albaani in
Saheeh al-Jaami‘, 2709.
The woman’s guardian is her
father, then his father (i.e., paternal grandfather), then her son, then his
son (i.e., grandson, if she has a son), then her brother through her father
and mother, then her brother through her father only, then their sons, then
her paternal uncles, then their sons, then the ruler. See: al-Mughni,
9/355
This is the view of the
majority of Maaliki, Shaafa‘i and Hanbali fuqaha’, and it is the correct
view that is in accordance with the texts.
The Hanafis are of the view
that a marriage concluded without the woman’s guardian is valid, and some
courts follow this opinion.
Because of the difference of
opinion among the scholars as to whether this marriage contract is valid, if
the judge issued a verdict of validity concerning this marriage, then his
ruling is not to be overturned and in that case it is said to be valid, so
that there will not be any confusion among people.
Ibn Qudaamah (may Allah have
mercy on him) said in al-Mughni (9/346), concerning a marriage
contract that is done without a guardian:
If a judge has ruled that
this marriage contract is valid, or if the one who did the marriage contract
was a judge, it is not permissible to overturn that. This applies to all
other marriages that may be regarded as invalid. And some of the scholars
are of the view that it should be overturned because it is contrary to the
text. But the former view is more appropriate, because this is a matter
concerning which there is a difference of scholarly opinion and differences
of opinion are acceptable in this case. End quote.
If your sister wants to be on
the safe side, and the parents approve of the marriage, then she has to ask
her husband to repeat the marriage contract with her father as guardian, so
that the marriage contract will be valid beyond any shadow of doubt.
And Allah knows best.