Exodus 21:4
If his master gives him a wife and she bears for him sons or daughters, the wife and her children will belong to her master, and [the slave] will go out single.
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 your relative who is a Hebrew man or a Hebrew woman is sold to you, and [he or she] has served you six years, then in the seventh year you shall send that person [out] {free}.