Parallel
2 Chronicles 20:34
King James Version (1769 Blayney revision, with Apocrypha) · Berean Standard Bible
Now the rest of the acts of Jehoshaphat, first and last, behold, they are written in the book (note: Heb. words) of Jehu the son of Hanani, who is mentioned (note: Heb. was made to ascend) in the book of the kings of Israel.
As for the rest of the acts of Jehoshaphat, from beginning to end, they are indeed written in the Chronicles of Jehu son of Hanani, which are recorded in the Book of the Kings of Israel.