Mark 9:11

Then they asked Him, "Why do the scribes say that Elijah has to come first?"

and if you are willing to accept it, John himself is the Elijah who was to come.

And Elijah appeared to them, accompanied by Moses, and they were talking with Jesus.

The disciples asked Him, "Why then do the scribes say that Elijah must come first?"

Treasury of Scripture Knowledge

And they asked him, saying, Why say the scribes that Elias must first come?

And Elijah appeared to them, accompanied by Moses, and they were talking with Jesus.

and if you are willing to accept it, John himself is the Elijah who was to come.

The disciples asked Him, "Why then do the scribes say that Elijah must come first?"