"I met my maternal uncle who was carrying a flag (for an expedition) and I said: 'Where are you going?' He said: 'The Messenger of Allah is sending me to a man who has married his father's wife after he died, to strike his neck or kill him.'" (Using translation from Nasāʾī 3331)
لَقِيتُ خَالِي وَمَعَهُ الرَّايَةُ قُلْتُ أَيْنَ تُرِيدُ؟ قَالَ «بَعَثَنِي النَّبِيُّ ﷺ إِلَى رَجُلٍ تَزَوَّجَ امْرَأَةَ أَبِيهِ مِنْ بَعْدِهِ فَأَمَرَنِي أَنْ أَضْرِبَ عُنُقَهُ»