2 Kings 2:16 (KJV)

And he took the mantle of Elijah that fell from him, and smote the waters, and said, Where is the Lord God of Elijah? and when he also had smitten the waters, they parted hither and thither: and Elisha went over.

And when the sons of the prophets which were to view at Jericho saw him, they said, The spirit of Elijah doth rest on Elisha. And they came to meet him, and bowed themselves to the ground before him.

And they said unto him, Behold now, there be with thy servants fifty strong men; let them go, we pray thee, and seek thy master: lest peradventure the Spirit of the Lord hath taken him up, and cast him upon some mountain, or into some valley. And he said, Ye shall not send.

And when they urged him till he was ashamed, he said, Send. They sent therefore fifty men; and they sought three days, but found him not.

And when they came again to him, (for he tarried at Jericho,) he said unto them, Did I not say unto you, Go not?