13 Then Jesus said to the centurion, “Go! Let it be done just as you believed it would.” And his servant was healed at that moment.

Read Matthew 8:13 Using Other Translations

And Jesus said unto the centurion,Go thy way; and as thou hast believed, so be it done unto thee. And his servant was healed in the selfsame hour.
And to the centurion Jesus said, "Go; let it be done for you as you have believed." And the servant was healed at that very moment.
Then Jesus said to the Roman officer, “Go back home. Because you believed, it has happened.” And the young servant was healed that same hour.