New Living Translation
Simon Peter motioned to him to ask, “Who’s he talking about?”

American Standard Version
Simon Peter therefore beckoneth to him, and saith unto him, Tell us who it is of whom he speaketh.

Berean Study Bible
So Simon Peter motioned to him to ask Jesus which one He was talking about.

Douay-Rheims Bible
Simon Peter therefore beckoned to him, and said to him: Who is it of whom he speaketh?

English Revised Version
Simon Peter therefore beckoneth to him, and saith unto him, Tell us who it is of whom he speaketh.

King James Bible
Simon Peter therefore beckoned to him, that he should ask who it should be of whom he spake.

World English Bible
Simon Peter therefore beckoned to him, and said to him, "Tell us who it is of whom he speaks."

Young's Literal Translation
Simon Peter, then, doth beckon to this one, to inquire who he may be concerning whom he speaketh,

John 13:24 Additional Translations ...