פירוש על קידושין 37:12

R. Nahman b. Yitzchak says that R. Yose son of R. Yehudah could even hold that the original sales money counts as kiddushin money, but still in order for her to be designated there must be time in the day for her to work. This is simply what the verse teaches.
Just to go over the structure here. R. Yose son of R. Yehudah did not saying anything about whether the original sales money counts as kiddushin money. He only ruled that there must be time left in the last day of her service for her to work in order for the master to designate her. The “stam,” the anonymous voice in the Talmud and R. Nahman b. Yitzchak argued over whether this implies that he holds that the sale money counts as kiddushin money. The “stam” holds that it does not, and R. Nahman b. Yitzchak holds that it does. This is why earlier we saw two opinions attributed to R. Yose son of R. Yehudah.