2 Kings 2:3-7

Then the sons of the prophets who were at Bethel went out to Elisha and said to him, “Are you aware that the Lord will take away your master from over you today?” And he said, “Yes, I am aware; say nothing about it.”

And Elijah said to him, “Elisha, please stay here, for the Lord has sent me to Jericho.” But he said, “As surely as the Lord lives, and as you yourself live, I will not leave you.” So they came to Jericho.

Then the sons of the prophets who were at Jericho approached Elisha and said to him, “Do you know that the Lord will take away your master from over you today?” And he answered, “Yes, I know; say nothing about it.”

And Elijah said to him, “Please stay here, for the Lord has sent me to the Jordan.” But he said, “As surely as the Lord lives, and as you yourself live, I will not leave you.” So the two of them went on.

Now fifty men of the sons of the prophets went and stood opposite them at a distance, while the two of them stood by the Jordan.