Mark 9:11

So they asked him, "How is it that the Scribes say that Elijah must first come?"

"and, if you are willing to receive it, he is the Elijah who was to come.

Moreover there appeared to them Elijah, with Moses; and they were talking with Jesus.

And his disciples asked him, saying, "Why then do the Scribes say that Elijah must first come?"

Treasury of Scripture Knowledge

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

Moreover there appeared to them Elijah, with Moses; and they were talking with Jesus.

"and, if you are willing to receive it, he is the Elijah who was to come.

And his disciples asked him, saying, "Why then do the Scribes say that Elijah must first come?"