Praise be to
Allah.
Firstly:
It is not permissible to enter into riba-based transactions, even if your father tells you to
do that. What you should have done when you found out that riba
is haraam is leave the job, even if that would have
made your father angry with you, because the Prophet (blessings and peace of
Allah be upon him) said: “There is no obedience to any created being if it
involves disobedience towards Allah, may He be glorified and exalted.” Narrated
by Ahmad, 1041
But you are only responsible for the riba-based transactions that you did yourself or to which
you were a party.
But if your father is the one who did
that riba-based transaction and you did not help him
with it or play any part in it, then you are not responsible for it, even if
you were helping your father in his work that was financed by this riba-based loan.
What you have to do now is repent
sincerely, regret what you did in the past and resolve not to go back to being
involved in riba-based transactions. For more
information please see the answer to question 162423 and 95005
Secondly:
The Muslim is not obliged to pay zakaah on his car or house if they are not trade goods,
because the Prophet (blessings and peace of Allah be upon him) said: “The
Muslim does not have to pay zakaah on his slave or
his horse.”
Narrated by al-Bukhaari,
1463; Muslim, 983. For more information please see the answer to question no. 20057
Thirdly:
With regard to paying off the debt from
the jewellery, if the jewellery
is the property of your wife, you and your father have no right to it, even if
your father bought it with his own wealth, because it is no longer in his
possession and it is not permissible for him to take it back. But if the jewellery still belongs to your father but he gave it to
her as a loan, then he has to sell it and pay off the debts or part of them,
because the Prophet (blessings and peace of Allah be upon him) said: “Delay in
payment of a debt on the part of a rich man is wrongdoing.” Narrated by al-Bukhaari, 2288; Muslim, 1564. And he (blessings and peace
of Allah be upon him) said: “Whoever takes people’s wealth intending to pay it
back, Allah will enable him to pay it back, and whoever takes it intending to
destroy it, Allah will destroy him.” Narrated by al-Bukhaari,
2387
Fourthly:
With regard to zakaah
on jewellery, it is an obligation upon the owner. If
it belongs to your wife, then she has to pay zakaah
on it, if it reaches the nisaab (minimum threshold),
which is 85 grams of gold, whether it is for adornment or otherwise. If your
wife does not have any wealth other than this jewellery
and she has to pay zakaah, then she must sell some of
it and pay zakaah on it. For more information please
see the answer to question no. 50273.
The same applies to your mother.
There is nothing wrong with your wife or
mother giving the zakaah to your father so that he
can pay off his debts; rather that is preferable. For more information, please
see the answer to question no. 43207
And Allah knows best.