[If he said, “I will sell you] a kor’s space of soil as measured by a rope”, and he gave him less, the buyer may reduce the price; and if he gave him more, the buyer must give it back. But if he said, “Whether less or more”, even if he gave the buyer a quarter-kab’s space less in every seah’s space, or a quarter kab’s space more in every seah’s space, it becomes his; if [the error] was more than this, a reckoning must be made. What does he (the buyer) give him back? Its value in money; but if the seller wants, he gives him back the land. And why did they say that he could give back its value in money? To strengthen the power of the seller, for if, in a field [containing a kor’s space] there would still have remained to him nine kab’s space, or, in a garden, a half-kab’s space, or according to Rabbi Akiva a quarter-kab’s space, the buyer must give back to him land. And not only must he give back the quarter-kab’s space, but all of the surplus.