New Living Translation
asked him, “If you aren’t the Messiah or Elijah or the Prophet, what right do you have to baptize?”

American Standard Version
And they asked him, and said unto him, Why then baptizest thou, if thou art not the Christ, neither Elijah, neither the prophet?

Berean Study Bible
asked him, “Why then do you baptize, if you are not the Christ, nor Elijah, nor the Prophet?”

Douay-Rheims Bible
And they asked him, and said to him: Why then dost thou baptize, if thou be not Christ, nor Elias, nor the prophet?

English Revised Version
And they asked him, and said unto him, Why then baptizest thou, if thou art not the Christ, neither Elijah, neither the prophet?

King James Bible
And they asked him, and said unto him, Why baptizest thou then, if thou be not that Christ, nor Elias, neither that prophet?

World English Bible
They asked him, "Why then do you baptize, if you are not the Christ, nor Elijah, nor the prophet?"

Young's Literal Translation
and they questioned him and said to him, 'Why, then, dost thou baptize, if thou art not the Christ, nor Elijah, nor the prophet?'

John 1:25 Additional Translations ...