I met my uncle who was carrying a standard. I asked him: Where are you going? He said: The Messenger of Allah ﷺ has sent me to a man who has married his father's wife. He has ordered me to cut off his head and take his property. (Using translation from Abū Dāʾūd 4457)
«بَعَثَنِي رَسُولُ اللهِ ﷺ إِلَى رَجُلٍ نَكَحَ امْرَأَةَ أَبِيهِ فَأَمَرَنِي أَنْ أَضْرِبَ عُنُقَهُ وَآخُذُ مَالَهُ»