1 Kings 11:14

Therefore the LORD said to Solomon, “Because this is done by you, and you have not kept my covenant and my statutes, which I have commanded you, I will surely tear the kingdom from you, and will give it to your servant.

Nevertheless, I will not do it in your days, for David your father’s sake; but I will tear it out of your son’s hand.

However, I will not tear away all the kingdom; but I will give one tribe to your son, for David my servant’s sake, and for Jerusalem’s sake which I have chosen.”

For when David was in Edom, and Joab the captain of the army had gone up to bury the slain, and had struck every male in Edom

(for Joab and all Israel remained there six months, until he had cut off every male in Edom),

Hadad fled, he and certain Edomites of his father’s servants with him, to go into Egypt, when Hadad was still a little child.