115:2 When erev Pesach falls on Shabbos, the first-born sons fast on Thursday. If it’s too difficult for them to fast until after the search for chometz, they may eat a little before the search or appoint an agent to search for them.
115:3 For a Shabbos that is erev Pesach, one does not cook food that has flour or grain that might stick to the pots. Since we may not wash them on Shabbos, we only cook food items that won’t stick. After the meal, we thoroughly shake out the tablecloth, then put it away with the chometz dishes in a room that is not normally entered during Pesach. If we have some bread left, we give it to a non-Jew, being careful not to carry it in a manner prohibited on Shabbos. The room should be swept by a non-Jew, or one should do it himself in a permitted manner.