What is the ruling on property taken by a non-Muslim belligerent who then converts to Islam while the property is still in his possession?

Primary text

If a non-Muslim belligerent converts to Islam while in possession of property previously taken from a Muslim, the property remains his absolutely, without any dispute within the school of thought. This is based on the statement of the Messenger of Allah (peace be upon him): "Whoever embraces Islam with something, it is his." This ruling applies whether he acquired the property through a gift, theft, or purchase, as his seizure occurred during his state of disbelief, making it analogous to property taken by force from a Muslim.