Is a slave (*raqiq*) permitted to emancipate his slave without his master's permission?

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Emancipation of a slave's own slave is invalid unless done with the permission of the master of the emancipator. This view is held by Al-Hasan, Al-Awza'i, Malik, Al-Shafi'i, and Abu Hanifa. The justification is that emancipating another's slave constitutes harm to the master by depriving him of his property without any corresponding gain, equating it to a gift (*hibah*). If emancipation is performed without permission, it does not take effect. The primary evidence for the invalidity stems from the fact that this is a disposition of property made without the owner's consent, rendering it void, similar to a gift, and because the act is one explicitly prohibited due to the right of the master.