Sahih al-Bukhari 4405
Sahih al-Bukhari · Book 64: Military Expeditions led by the Prophet (pbuh) (Al-Maghaazi) · Hajjat-ul-Wada
Narrated Jarir:
حَدَّثَنَا حَفْصُ بْنُ عُمَرَ ، حَدَّثَنَا شُعْبَةُ ، عَنْ عَلِيِّ بْنِ مُدْرِكٍ ، عَنْ أَبِي زُرْعَةَ بْنِ عَمْرِو بْنِ جَرِيرٍ ، عَنْ جَرِيرٍ ، أَنَّ النَّبِيَّ صلى الله عليه وسلم قَالَ فِي حَجَّةِ الْوَدَاعِ لِجَرِيرٍ " اسْتَنْصِتِ النَّاسَ " فَقَالَ " لاَ تَرْجِعُوا بَعْدِي كُفَّارًا، يَضْرِبُ بَعْضُكُمْ رِقَابَ بَعْضٍ " .
The Prophet (ﷺ) ordered me during Hajjatul-Wada`. "Ask the people to listen." He then said, "Do not become infidels after me by cutting the necks (throats) of one another. "