《太平广记·卷六十三·女仙八》
过后十五六日，是个大吉之辰，您到这个时候，只管置办婚礼所必需的东西，并在这里备办酒肴。
后十五六日，大是吉辰，君于此时，但具婚礼所要，并于此备酒肴。
After fifteen or sixteen days, it will be a very auspicious day. By that time, you can just prepare the necessary items for the wedding and prepare food and drinks here.