Book of Jasher 37:45
And Judah hastened and took up a stone from the ground, and with it smote one of them upon the head, and his skull was fractured, and the body also fell from the horse to the ground.
And Judah hastened and took up a stone from the ground, and with it smote one of them upon the head, and his skull was fractured, and the body also fell from the horse to the ground.