Exodus 21:4
If his master give him a wife and she bear him sons or daughters; the wife and her children shall be her master's, and he shall go out by himself.
Treasury of Scripture Knowledge
Summary
                            If his master have given him a wife, and she have born him sons or daughters; the wife and her children shall be her master's, and he shall go out by himself.                        
                    General references
Bible References
General references
                                        Deuteronomy 15:12                                        
                                                            
                        If thy brother, a Hebrew man, or a Hebrew woman, be sold unto thee, and serve thee six years; then in the seventh year thou shalt let him go free from thee.