The bread and oil of non-Jews is forbidden. Was permission granted to allow bread of non-Jews? If so, was it limited to particular circumstances? Why was the oil of non-Jews forbidden and then later permitted? Debate between Rav and Shmuel. Many questions are raised against Rav’s opinion. According to Rav, it was part of the eighteen things that the students of Shamai and Hillel forbade on one particular day when there were more students of Shamai than Hillel and Shamai’s students were able to pass them by a majority vote. What they forbade on that day according to Rav in the category of non-Jews is explained – bread and oil because of wine, wine because of their daughters, their daughters because of something else and something else on account of something else. The gemara has a discussion and brings several attempts to explain what the issue is regarding the daughters, because if it is lest they marry them, that is already forbidden by Torah law.