Sayyiduna Abu Huraira (may Allah be pleased with him) narrates this statement of the Noble Prophet (peace and blessings be upon him): "Whoever frees his share in a slave, it will be obligatory upon him to free the entire slave from his wealth if he possesses sufficient wealth. And if he does not have enough wealth, then the value of the slave will be determined appropriately, and then the slave will be made to work for wages corresponding to the share that was not freed. However, he will not be subjected to hardship."
Hadith Referenceصحیح ابن حبان / كتاب العتق / 4319
Hadith Gradingفضيلة الشيخ الإمام محمد ناصر الدين الألبانيصحيح - «الإرواء» (5/ 358): ق.فضيلة الشيخ العلّامة شُعيب الأرناؤوطإسناده صحيح على شرطهما