1 Kings 15:25-28

25And Nadab the son of Jeroboam began to reign over Israel in the second year of Asa king of Judah; and he reigned over Israel two years.

26And he did evil in the sight of Jehovah, and walked in the way of his father, and in his sin with which he made Israel sin.

27And Baasha the son of Ahijah, of the house of Issachar, conspired against him; and Baasha smote him at Gibbethon, which [belonged] to the Philistines, when Nadab and all Israel were besieging Gibbethon.

28And Baasha slew him in the third year of Asa king of Judah, and reigned in his stead.