"The Messenger of Allah (ﷺ) judged that the son is to suffer retaliation for [killing] his father, but the father is not to suffer retaliation for [killing] his son."
Reference: Jami` at-Tirmidhi 1399 In-book : Book 16, Hadith 15 English translation : Vol. 1, Book 14, Hadith 1399
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