Genesis 16:4-6

4He slept with Hagar, and she became pregnant. When she saw that she was pregnant, her mistress became contemptible to her.

5Then Sarai said to Abram, “You are responsible for my suffering! I put my slave in your arms, and when she saw that she was pregnant, I became contemptible to her. May the Lord judge between me and you.”

6Abram replied to Sarai, “Here, your slave is in your power; do whatever you want with her.” Then Sarai mistreated her so much that she ran away from her.