The Messenger of Allah ﷺ sent me to a man who had married his father's wife, with orders to bring back his head.
حدثنا أبو سعيد الأشج حدثنا حفص بن غياث عن أشعث عن عدي بن ثابت عن البراء قال مر بي خالي أبو بردة بن نيار ومعه لواء فقلت
بعثني رسول الله ﷺ إلى رجل تزوج امرأة أبيه أن آتيه برأسه
[Sahih] Ibn Majah also reported it in the Book of Hudud, Chapter on One Who Marries His Father's Wife After Him, h: 2607, from the hadith of Hafs bin Ghiyath, and Abu Dawud, h: 4457, from the hadith of Adi bin Thabit conveying it. Ibn Jarud graded it sahih, h: 681, as did Ibn Hibban, h: 1516, and Hakim, according to the standard of Muslim, 2/191, and Dhahabi agreed with him. On this subject there is also a report from Qurrah Muzani (Ibn Majah: 2608).