פירוש על קידושין 120:2

The Talmud asks the question we could certainly anticipate—why teach the same dispute twice? The answer begins by explaining what would have happened if it taught the dispute only about kiddushin. We might have thought that only in this case does R. Huna say that the kiddushin takes effect immediately. Since the husband is drawing her near, he would want to draw her near as soon as possible. However, in the case of divorce we might have thought that he would agree with R. Judah. She is divorced only once she gives the money.