1 Kings 15:13-15

13And also Maachah his mother he removed from being queen, because she had made an idol for the Asherah; and Asa cut down her idol, and burned it in the valley of Kidron.

14But the high places were not removed; only, Asa's heart was perfect with Jehovah all his days.

15And he brought into the house of Jehovah the things which his father had dedicated, and the things which he himself had dedicated, silver and gold and vessels.