https://www.btstories.com/jehu/

Elisha selected one of the young prophets. He said to him, “Take this bottle of oil and go to Jehu. He’ll be with his friends, so ask to see him alone. Anoint him king of Israel. Once you’re done, open the door and run away.”

The young prophet found Jehu visiting with the other commanders of the army. The young man said to him, “I have a message for you.”