Hazrat Ibn Umar (may Allah be pleased with them both) narrated that the Messenger of Allah (peace and blessings be upon him) said: Whoever frees his share of a jointly owned slave, and he has enough wealth to pay the full price of the slave, then it is obligatory for him to free the entire slave. But if he does not have enough wealth to pay the full and correct price of the slave, then only the portion of the slave that has been freed is considered free.