Hadith #4446The Book of ad-Dahaya (Sacrifices) · Narrated by Ahmad bin Hanbal أحمد بن حنبل, Amir bin Abd al-Wahd عامر بن عبد الواحد الأحول البصري, Amr bin al-Shryd عمرو بن الشريد, Khalf bin Mahran al-Advi, Abu al-Rabi' خلف بن مهران العدوي أبو الربيع, Muhammad bin Da'ud bin Sbyh محمد بن داود بن صبيح أبو جعفر, Salah bin Dinar al-Ja'fi al-Hilali صالح بن دينار الجعفي
some Bedouin people used to bring us meat, and we did not know whether they had mentioned the Name of Allah (when slaughtering it) or not. The Messenger of Allah said: “Messenger of Allah said: “Mention the Name of Allah and eat.” (Sahih )