What is the ruling on money acquired from an unlawful act before knowing of its prohibition?

Money acquired from an impermissible occupation before knowing of its prohibition has two scenarios:

1. If the money was taken through usurpation (ghasb) or theft: It must be returned to its owners if possible; otherwise, it should be given as charity on their behalf.

2. If it was taken through a forbidden method with the consent of the other party, and the recipient was ignorant of its prohibition (e.g., someone who unknowingly takes usurious interest, or earns from music unknowingly): Some scholars say that he is not obligated to dispose of what he acquired due to his ignorance, and he is covered by the Almighty's saying: (So whoever receives an admonition from his Lord and stops, then he may keep what is past, and his affair is [now] with Allah). This is on condition that he ceases such practices in the future. However, most scholars are of the opinion that this verse is specific to someone who was a disbeliever or grew up in a remote wilderness, and adhering to the view of the majority is more cautious.