The Messenger of Allah ﷺ said, "Do not turn back after me into disbelievers, striking one another's necks."
حدثنا أبو حفص عمرو بن علي حدثنا يحيى بن سعيد حدثنا فضيل بن غزوان حدثنا عكرمة
قال رسول الله ﷺ لا ترجعوا بعدي كفارا يضرب بعضكم رقاب بعض
Graded: also reported by Bukhari, Hajj, chapter on the sermon during the days of Mina, no. 1739, from the hadith of Yahya Qattan through the same chain. On this subject there are also narrations from Abdullah bin Masud [Ahmad: 1/402], Jareer [Bukhari, no. 4405, and Muslim, no. 65], Ibn Amr [Bukhari, no. 4403, and Muslim, no. 66], Kurz bin Alqama [Ahmad: 3/477, and Humaydi, no. 574], Wathila bin Asqa [Ahmad: 4/106], and Sanabihi [Ibn Majah, no. 3944].