under

2 Samuel 2:23
But Asahel refused to turn away; so Abner thrust the butt of his spear into his stomach, and it came out his back, and he fell dead on the spot. And every man paused when he came to the place where Asahel had fallen and died.

2 Samuel 3:27
When Abner returned to Hebron, Joab pulled him aside into the gateway, as if to speak to him privately, and there Joab stabbed him in the stomach. So Abner died on account of the blood of Joab's brother Asahel.

2 Samuel 20:10
Amasa was not on guard against the dagger in Joab's hand, and Joab stabbed him in the stomach and spilled out his intestines on the ground. And Joab did not need to strike him again, for Amasa was dead. Then Joab and his brother Abishai pursued Sheba son of Bichri.