《太平广记·卷四百八十八·杂传记》
阴历十五的晚上，张生于是把那棵树当作梯子爬过墙去。到了西厢房，一看，门果然半开着，红娘躺在床上，张生很吃惊。红娘十分害怕，说： 你怎么来了？ 
既望之夕，张因梯其树而逾焉，达于西厢，则户半开矣。红娘寝于床，生因惊之。红娘骇曰： 郎何以至？ 
On the evening of the 15th of the lunar calendar, Zhang used the tree as a ladder and climbed over the wall. When he arrived at the west wing room, he saw that the door was indeed half open. The red lady was lying on the bed, and Zhang was surprised. The red lady was very scared and said: Why are you here?