1 Samuel 26:5-7

5Then David set out and went to the place where Saul had camped. He saw the place where Saul and Abner son of Ner, the general of his army, had lain down. Saul was lying inside the inner circle of the camp, with the troops camped around him. 6And David asked Ahimelech the Hittite and Abishai son of Zeruiah, Joab’s brother, “Who will go down with me to Saul in the camp?”

“I will go with you,” answered Abishai.

7That night David and Abishai came to the troops, and Saul was lying there asleep in the inner circle of the camp, with his spear stuck in the ground by his head. And Abner and the troops were lying around him.