Narrated Ibn 'Umar: “Aishah, mother of believers (ra), intended to buy a slave-girl to set her free. Her people said: We shall sell her to you on one condition that we shall inherit from her. 'Aishah mentioned it to the Messenger of Allah (ﷺ). He said: That should not prevent you, for the right of inheritance belongs to the one who has set a person free”
SahihSahihSahih Bukhari (2169) Sahih Muslim (1504)Book 19 · Hadith 31