About using haram money after repentance, he did not clarify which money.

As for haram money that is after repentance, there are two possible situations.

The first situation is if the haram money was taken without mutual consent, such as when a person steals or seizes money, then it is not allowed for him to benefit from that money. Rather, he must return it.

And this is among the rights that a person must fulfill. The Prophet ﷺ mentioned this in the hadith of Abu Huraira about the fasting person.

He said: You will return the rights to their owners, and Allah will even bring justice between the horned sheep and the hornless sheep. Also, in another hadith, and in the authentic collection, the Prophet ﷺ said: Whoever has wronged his brother in anything, let him seek his pardon.

Before a day comes when there will be no dinar or dirham. So he must settle those debts if they were stolen, or loans, or usurped.

For he will have to return it even if he repented from it, and his repentance in that does not erase that deed.

As for the second type of haram wealth, which is acquired by mutual consent but in a forbidden manner, such as contracts involving riba, and also in gambling, games of chance, uncertainty, and risk.

And other things like that, then in that case, he may keep what has already passed into his possession, but what is still pending is not his.

For example, if a person made a contract involving riba and then repented from it, we say to him: his original capital is his, but whatever remains, he must leave it to its owner, and it is not permissible for him to take it.

For this reason, we differentiate between usurped wealth that was taken without consent, and wealth that was taken with consent but through forbidden contracts, so we say: those forbidden contracts in that case.

Were taken with mutual consent and willingness, then we say: there is no harm for a person to benefit from it.

That is because Allah, the Mighty and Majestic, has forgiven what has passed for those who consumed usury, and likewise for those who entered Islam.

And whatever wealth he had and similar things from those previous contracts, they are included.

And in the origin of the matter, it is different from theft, because theft remains as a debt and entering Islam does not affect it.

And if he was previously a polytheist, then he must return the rights to their owners if he knows them, and if a person does not know those people who have rights,

then in that case, we say he should give charity.

He gives charity on their behalf, and it is hoped that Allah, the Mighty and Majestic, will pardon him. And Allah knows best. May Allah reward you with goodness.