It is reported from the Messenger of Allah ﷺ that he carried out execution by means of qassama against a man from Banu Nasr bin Malik at Bahrat al-Righa, on the bank of Liyya al-Bahra. The killer and the victim were both from them. This is the wording of Mahmud, "at Bahra," which Mahmud alone established, "on the bank of Liyya."
حدثنا محمود بن خالد وكثير بن عبيد قالا حدثنا ح و حدثنا محمد بن الصباح بن سفيان أخبرنا الوليد عن أبي عمرو
عن رسول الله ﷺ أنه قتل بالقسامة رجلا من بني نصر بن مالك ببحرة الرغاء على شط لية البحرة قال القاتل والمقتول منهم وهذا لفظ محمود ببحرة أقامه محمود وحده على شط لية
No references are available.
[Its isnad is daif] Bayhaqi related it, 8/127, from the hadith of Abu Dawud, by this route. The chain is mursal, see Al-Marasil by Abu Dawud, no. 270.