Jubilees 28:20

In 1 translation

Jub-Charles

And when Leah saw that she had become sterile and did not bear, she envied Rachel, and she also gave her handmaid Zilpah to Jacob to wife, and she conceived, and bare a son, and Leah called his name Gad, on the twelfth of the eighth month, in the third year of the fourth week. [2131 A.M.]