[If] he sold him a field, and he gave him part of the money, and he said to him: “Whenever you wish, bring the money and take yours,” it is prohibited.  [If] he lent him on [the security of] his field, and said to him: “If you do not pay me within three years, it is mine,” it is his. And so was Baisos the son of Zonin wont to do, with the consent of the Sages.