What is the legal status of a captive upon accepting Islam while captured?

Primary text

Upon a captive accepting Islam while in custody, they immediately become a slave, and the option for execution is removed, placing their ruling upon that of a woman. This view is held by Al-Shafi'i in one of his two established opinions. The justification is that the captive, having accepted Islam, becomes unlawful to kill, thus analogizing their status to that of a female captive. The incident concerning the captured man from Bani 'Uqayl, who accepted Islam after being captured and subsequently ransomed by the Prophet, peace be upon him, does not contradict this ruling, as a woman who is a slave may also be ransomed. Furthermore, since execution is invalidated by his Islam, the other original options remain as they were, though the primary ruling establishes immediate enslavement.