read back
To read aloud the information someone else has just dictated or given to one. A noun or pronoun can be used between "read" and "back." OK, I wrote down everything you said. Do you want me to read it back to you? The clerk read back the numbers over the phone to me.
read something back (to someone)
to read back some information to the person who has just given it. Yes, I have written the telephone number down. Let me read it back to you to make sure I have it right. Please read back the letter to me.