I Kings 11:41-43

⁴¹Now the rest of the acts of Solomon and whatever he did, and his wisdom, are they not written in the book of the acts of Solomon? ⁴²Thus the time that Solomon reigned in Jerusalem over all Israel was forty years. ⁴³And Solomon slept with his fathers and was buried in the city of his father David, and his son Rehoboam reigned in his place.