What is the ruling on using the profits from a deposit in a usurious bank, from the estate of the deceased mother, to maintain an apartment owned by the heirs, knowing that the profits were not distributed among the heirs and a portion of them was distributed to the needy?

It is not permissible to benefit from the usurious interest taken from the bank. Whatever remains of it must be given to the needy or spent on public utilities such as paving a road, building a school, or a hospital. It is not permissible to furnish a house from these earnings. They should supplicate frequently for their mother.