John Gill Commentary 2 Kings 9:28

"And his servants carried him in a chariot to Jerusalem, and buried him in his sepulchre with his fathers in the city of David." — 2 Kings 9:28 (ASV)

And his servants carried him in a chariot to Jerusalem
With the leave of Jehu, because he was the grandson of Jehoshaphat, a sincere worshipper of God, (2 Chronicles 22:9) ,

and buried him in his sepulchre with his fathers in the city of David ;
see (1 Kings 22:50) .