How is the conscience cleared by one who bought a house with money, part of which is lawful and part of which is forbidden?

Question:
Honorable Shaykh, may Allah grant you success, this questioner says: I bought a house, and some of the money I used to buy this house was forbidden, part of it was lawful and part of it was forbidden. He says: How is my conscience cleared so that the house is entirely lawful?

Answer:
If this forbidden money was usurped from someone or taken from someone by an invalid means, you return it to him. You return it to him. But if this money with which you built the house was earned from forbidden transactions, from such and such, then you give away an amount equal to it. You give away an amount equal to it, and it is distributed to the needy, not as charity, but as a means of getting rid of it. Yes.