Abu Hurairah (May Allah be pleased with him) reported:
The Messenger of Allah ﷺ said, "He who sets free a Muslim slave, Allah will deliver from the fire of Hell every limb of his body in return for every limb of the slave's body, even his private parts."

[Al-Bukhari and Muslim].

وعن أبي هريرة رضي الله عنه قال: قال لي رسول الله ﷺ : "من أعتق رقبة مسلمة أعتق الله بكل عضو منه عضوًا منه من النار حتى فرجه بفرجه" ((متفق عليه))