1 Kings (Author Compiled by Isaiah and Jeremiah from records of Nathan, Gad, Iddo, Ahijah, Jehu and others.)
11:21And when Hadad heard in Egypt that David slept with his fathers, and that Joab the captain of the host was dead, Hadad said to Pharaoh, Let me depart, that I may go to mine own country.
Original from The Bible Foundation - bf.org. They claim public domain status for their original text.