A father is not to be killed (in retribution) for killing his child,’ I would have ordered you to be killed before you leave." [Sahih/Authentic by virtue of its parallel channels of transmission and supportive narrations [Ibn Maajah]

لا يُقاد الوالد من ولده" لقتلتك قبل أن تَبْرَحَ. [صحيح بطرقه وشواهده.] - [رواه الترمذي وابن ماجه وأحمد.]