User blog comment:Brandon Rhea/The Force Awakens Trailer 2 - Fan Reaction/@comment-24499270-20150419030848/@comment-1188646-20150419032640

(In reply to Tofty) It's all from ROTJ, though the "you have that power too" portion is out of order. The full line, with the lifted portions bolded:
 * Leia: "You have a power I... I don't understand and could never have."
 * Luke: "You're wrong, Leia. You have that power too. In time you'll learn to use it as I have. The Force is strong in my family. My father has it... I have it... and my sister has it."