Is it permissible to pay the usurious interest owed by the deceased (5,0 EGP) from the usurious interest generated by the minor heirs' money deposited in the bank (6,0 EGP)?

The usurious interest amounting to 11,0 EGP (5,0 from the father's money and 6,0 from the money of minor siblings) is unlawful wealth that must be disposed of by spending it on the poor and needy.

It is permissible for anyone who is poor among those in possession of this money, or their dependents, to take from it what suffices their needs, as stated by An-Nawawi. However, it is not permissible for the rich to take from it, because its designated recipients are the poor, the needy, and general Muslim welfare.

If the intention is to pay off the interest from money other than the money that contained the interest, there is no harm in that, because the purpose is to dispose of the amount of unlawful money, and the unlawfulness does not pertain to the physical banknotes themselves but rather to the liability of the one who acquired them.