In which episode did Wei Zi recognize the emperor as her father?

In episode 52, three girls were black and blue, and the emperor knew there was something else, so he immediately came to Liang Zhu. Liang Tinggui said that torture was ordered by the palace. At this time, Ji Xiaolan presented a confession found in prison, and the emperor beheaded Liang Tinggui after reading it. The emperor personally drugged Wei Zi and finally recognized the daughter. At the same time, he wanted to punish the queen who played tricks, but Wei Zi advised him to stop. In view of the unknown life experience of the swallow, Yu Fei advised Yongqi to stay away; Lang Shining was so angry that he started fighting with Ben Ming Jie. The Queen Mother wants to send Pu's father to investigate his life experience in Lu.