Genesis 30:16-21

When Jacob came in from the field that night, Leah went out to meet him. She said, “You will have sexual relations with me tonight because I have paid for you with my son’s mandrakes.” So Jacob slept with her that night. Then God answered Leah’s prayer, and she became pregnant again. She gave birth to a fifth son and said, “God has given me what I paid for, because I gave my slave girl to my husband.” So Leah named her son Issachar. Leah became pregnant again and gave birth to a sixth son. She said, “God has given me a fine gift. Now surely Jacob will honor me, because I have given him six sons,” so she named him Zebulun. Later Leah gave birth to a daughter and named her Dinah.