It is narrated from Hazrat Suwaid bin Muqarrin (may Allah be pleased with him) that a man slapped a slave girl belonging to the family of Suwaid. Hazrat Suwaid (may Allah be pleased with him) said to him, "Do you not know that it is forbidden to strike the face? We were seven brothers and had only one servant. One of us once slapped her, so the Noble Prophet (peace and blessings be upon him) ordered us to set her free. The brothers said, 'We have no other servant besides her.' The Noble Prophet (peace and blessings be upon him) said, 'Then continue to take service from her, and when you no longer need her, set her free.'"