Ruling on borrowing from one whose wealth is haram

Do not betray the one who betrays you

Taking interest and offsetting losses with riba

It is not permissible for your father to accept what is given to him because of his work

Taking a card and giving money to its owner and five other people, in a pyramid scheme

He is afraid that if he returns money that he stole before he was guided, he will be found out. What should he do?

Is it permissible for him to take the money left over by the students after a trip because he was not paid anything for supervising?

Ruling on working in a casino

He is trying to get out of paying back to the property bank on the grounds that he has a right in the bayt al-maal

He is not going to be transferred, so should he take the relocation costs?