What is the ruling on buying stolen goods, and how can the house be purified from these prohibitions, and what is the ruling on using them after repentance?

It is not permissible to purchase stolen goods if the buyer knows they are stolen. If he does so, he must return the goods to their rightful owner. If he is unable to identify the owner, he should give the goods in charity. There is no disagreement among jurists regarding the obligation to return existing stolen property to the one from whom it was stolen, based on the saying of the Messenger of Allah, peace and blessings be upon him: "The hand is responsible for what it takes until it renders it back." If the stolen item is damaged or destroyed, the thief must guarantee it. The price paid by the buyer to the thief can be reclaimed from the thief, and he has no right to demand it from anyone else, as the Prophet, peace and blessings be upon him, said: "If a man's property is stolen... and he finds it in the possession of a specific person, then he has a greater right to it, and the buyer should refer to the seller for the price." It is not permissible for the one in possession of the stolen item to benefit from it, even if he repents, unless he is unable to reach the owner, in which case he should give it in charity.